Phu Tho, the Ancestral Land of Vietnam: History, Legend & Den Hung

Phu Tho: The Ancestral Land Where Vietnam Began

Every nation has an origin story. Vietnam's begins here, in a province most foreign travelers have never heard of, on a forested hill about 85 kilometers northwest of Hanoi.

Phu Tho is the Dat To — the Ancestral Land — the place where, according to legend and to the deep memory of the Vietnamese people, the nation was founded more than four thousand years ago. It is where the first Vietnamese kingdom, Van Lang, took shape under the Hung Kings; where the dragon-and-fairy legend that explains who the Vietnamese are is rooted in the soil; and where, every spring, millions of Vietnamese make a pilgrimage to honor the founders of their country. For a traveler willing to look beyond beaches and karst bays, Phu Tho offers something rarer: the chance to stand at the source of a civilization.

This is a detailed guide to that history, the temple complex at its heart, the great festival it hosts, and what else the ancestral land holds. Let's begin where the Vietnamese themselves begin — with a dragon and a fairy.

The Founding Legend: Children of the Dragon and the Fairy

The story is known to every Vietnamese child, and it is not a minor myth — it is the national origin story, the answer to the question "where do we come from?"

Long ago, Lac Long Quan, a lord descended from dragons and ruler of the waters, married Au Co, a beautiful immortal descended from mountain fairies. Au Co gave birth not to children but to a sac containing one hundred eggs, which hatched into one hundred sons — strong, handsome, and destined to become the ancestors of the Vietnamese people.

But the dragon lord of the sea and the fairy of the mountains could not live together forever. They agreed to part: fifty sons followed their mother Au Co up into the highlands, and fifty followed their father Lac Long Quan down toward the sea. The eldest son who went with his mother remained in the region of present-day Phu Tho, became the first king, took the title Hung Vuong (Hung King), and founded the kingdom of Van Lang — the first Vietnamese state.

This is why, to this day, Vietnamese people call one another dong bao — "compatriots," a word that literally means "born from the same sac." And it is why they call themselves con Rong chau Tien — "children of the Dragon and grandchildren of the Fairy." The legend is not merely remembered; it is woven into the language of national identity itself.

The Hung Kings and the Kingdom of Van Lang

Beyond the legend lies a layer of semi-history. The Hung Kings are considered Vietnam's earliest founders — a line of eighteen rulers (by tradition) who each held the title Hung Vuong and governed the kingdom of Van Lang across the northern highlands and the Red River basin.

Whatever the precise historical truth, this era corresponds to a real and remarkable period: the Dong Son culture, famous for its intricate bronze drums, whose sound still echoes symbolically through the Hung Kings Festival today. The Hung Kings are credited in tradition with teaching the people to cultivate wet rice — the foundation of Vietnamese agricultural civilization — and with establishing the customs, crafts, and social order from which the nation grew.

For the Vietnamese, the Hung Kings are not distant curiosities. They are the shared ancestors of an entire people, the fixed point from which more than four thousand years of history unfolds — through Chinese domination, independent dynasties, colonial rule, war, and the modern nation. That continuity, that sense of an unbroken line back to a single origin, is the heart of what Phu Tho means.

"When You Drink Water, Think of the Source"

To understand why Phu Tho matters so deeply, you have to understand a phrase you'll hear again and again around the Hung Kings: uong nuoc nho nguon — "when you drink water, think of the source."

It is a moral philosophy as much as a proverb — a reminder to honor the generations who came before, to remember one's roots, to feel gratitude toward the ancestors whose resilience made the present possible. The pilgrimage to the ancestral land is the physical expression of that idea. Millions come each year not out of obligation but by choice, as an act of gratitude and belonging. In a country that has been invaded, divided, and rebuilt more times than almost any other, the Hung Kings stand for something powerful: that regardless of region, dialect, or the upheavals of history, all Vietnamese share one origin.

That is a heavy and beautiful thing to stand in the middle of, and it's what makes visiting Den Hung different from visiting any ordinary temple.

Den Hung: The Temple Complex on Nghia Linh Mountain

The spiritual center of the ancestral land is the **Hung Kings Temple complex (Den Hung)**, spread across the slopes of Nghia Linh Mountain in Viet Tri City, Phu Tho. It is not a single building but a series of temples ascending the sacred mountain, each tied to a stage of the founding story. The architecture's foundations are traced to the era of Dinh Tien Hoang in the 10th century, with the complex built to its present scale by the Later Le Dynasty in the 15th century.

Pilgrims climb the mountain through its levels, and the ascent itself is part of the ritual:

Den Ha (the Lower Temple). Near the base, this is where, by tradition, Au Co gave birth to the sac of one hundred eggs. It marks the beginning of the pilgrimage and the beginning of the story.

Den Trung (the Middle Temple). Higher up the slope, traditionally the place where the Hung Kings would meet with their advisors and discuss affairs of state — and where, by legend, the prince Lang Lieu presented the offerings that gave rise to Vietnam's most sacred foods (more on that below).

Den Thuong (the Upper Temple). At the summit, the most sacred site, where the Hung Kings performed rites to heaven and earth and prayed for good harvests and national well-being. This is where the main state ceremony of the festival is conducted. Nearby lies the tomb traditionally attributed to the sixth Hung King.

Den Gieng (the Well Temple). Below, dedicated to two princesses, daughters of the eighteenth Hung King, with an ancient well at its heart.

Beyond the mountain itself, two further temples complete the sacred landscape: the Lac Long Quan Temple, built on turtle-shaped Sim Hill about a kilometer away in a classic "mountains facing water" position overlooking a lake and the Red River, and the Au Co Temple, honoring the fairy mother. Together they enshrine both primal ancestors — the dragon father and the fairy mother — in the land where their story began.

There are, remarkably, more than 1,400 temples dedicated to the Hung Kings across Vietnam. But Den Hung in Phu Tho is the one — the ancestral seat, the source to which all the others point.

Gio To Hung Vuong: The Hung Kings Festival

Once a year the ancestral land comes fully alive for Gio To Hung Vuong — the Hung Kings' Commemoration Day, one of the most significant events in the entire Vietnamese calendar.

When it happens. The festival runs from the 8th to the 11th day of the third lunar month, with the great main ceremony on the 10th day. In the Gregorian calendar this usually falls in April (the exact date shifts each year with the lunar calendar). Since 2007 it has been an official national public holiday — government offices and many businesses close, and workers and students across the country are given the day to return home or visit a Hung Kings temple.

Its global recognition. In 2012, UNESCO inscribed the Worship of the Hung Kings in Phu Tho as an Intangible Cultural Heritage of Humanity — recognition of a living tradition, not a museum piece, that continues to bind a nation together.

The rituals. The heart of the festival is the solemn state procession and incense-offering ceremony that ascends to Den Thuong, led by officials in traditional dress, carrying offerings up the sacred mountain. Pilgrims by the hundreds of thousands follow, filling the slopes with incense smoke and quiet reverence.

The offerings — and a second legend. The traditional offerings placed before the Hung Kings are banh chung (a square sticky-rice cake filled with mung bean and pork, wrapped in green leaves) and banh giay (a round white cake of pounded sticky rice). These aren't arbitrary. Legend holds that a Hung King, choosing an heir among his sons, asked each to bring the finest dish. While others sought rare delicacies, the humble prince Lang Lieu offered these two simple rice cakes — the square banh chung representing the Earth, the round banh giay representing the Sky — honoring the land and the ancestors above all. The king, moved by their meaning, named him successor. The cakes have symbolized filial gratitude and the sacredness of rice ever since, and they remain central to the festival and to Tet across Vietnam.

The folk activities. Around the ceremonies, the festival bursts into folk culture: bronze drum performances echoing the ancient Dong Son sound; a rice-cooking contest in which teams must strike fire from bamboo and cook rice in clay pots while crossing a bamboo bridge; wrestling, human chess, and folk games; and — most precious of all — hat Xoan.

Hat Xoan: The Province's Other UNESCO Treasure

Phu Tho carries a second UNESCO heritage worth knowing about: hat Xoan (Xoan singing), an ancient ritual folk-singing tradition performed at the temples and communal houses of the ancestral land, traditionally in spring to honor the Hung Kings. Combining song, dance, and instruments in front of the shrines, it dates back, by tradition, to the Hung Kings' era itself. Once endangered, it was recognized by UNESCO and revived, and hearing it performed in its home province — the sound of a tradition more than a thousand years old — is one of the more moving cultural experiences Vietnam offers.

Beyond Den Hung: The Rest of Phu Tho

The ancestral land is not only temples. Phu Tho rewards travelers who linger with landscapes and heritage that few foreign visitors ever see.

Long Coc Tea Hills. Among Vietnam's most beautiful and least-known landscapes — hundreds of rounded, tea-covered hillocks that, at dawn when mist settles between them, look like islands in a green sea. Photographers consider it one of the finest sunrise spots in northern Vietnam, and it remains almost entirely off the tourist trail.

Xuan Son National Park. A rugged expanse of primeval forest, caves, streams, and ethnic Muong and Dao villages, cool and green in summer — excellent for trekking and a genuine escape into wild nature.

Hung Lo Communal House. A more-than-300-year-old communal house of outstanding cultural and historical value, a beautifully preserved example of traditional northern Vietnamese village architecture and communal life.

Thanh Thuy Hot Springs. Natural mineral hot springs along the Da River, a relaxing counterpoint to the region's temples and hills, with resorts built around the thermal waters.

Ao Chau Lagoon. A sprawling freshwater lagoon of countless islets and inlets, peaceful and scenic, sometimes called a miniature inland Ha Long.

When to Visit

Spring (February–April) is the classic time — fresh scenery, mild weather, and above all the Hung Kings Festival in April, the single most meaningful moment to be here. Be warned it's peak season; book accommodation well ahead if you're coming for the festival.

Summer (May–August) suits nature trips — the highlands and Xuan Son stay cool and green, ideal for escaping the lowland heat.

Autumn (September–November) brings mild, fresh weather and, for the tea hills of Long Coc, some of the most atmospheric misty mornings of the year.

For the festival specifically, aim for the 8th–10th day of the third lunar month, but expect enormous crowds — this is a national pilgrimage. To visit Den Hung in peace, come on any ordinary day outside the festival, when the sacred mountain is quiet and contemplative.

Getting There & Practical Notes

Phu Tho is one of the more accessible historic destinations from Hanoi — less than 90 kilometers northwest, and reachable in around 90 minutes to two hours.

By car: The most comfortable option, via the Noi Bai–Lao Cai Expressway straight to Viet Tri. Private transfers are easy to arrange from Hanoi.

By train: Trains run from Hanoi Station to Viet Tri Station, from where it's a short taxi (15–20 minutes) to the base of Nghia Linh Mountain.

By bus: Frequent buses depart Hanoi's My Dinh Bus Station. Cheap, but crowded and challenging without Vietnamese during festival time.

A practical note for the day itself: the Den Hung complex and the wider province's sites (Long Coc, Xuan Son, the outlying temples) are spread out, and much of Phu Tho sees few English speakers and little English signage. Having maps and translation working as you move between the temple levels and out to the tea hills genuinely smooths the trip — it's worth arriving with your connectivity already sorted so you can navigate the sprawling site and read the historical markers rather than guessing your way around the ancestral land.

Dress respectfully at the temples — cover shoulders and knees, remove shoes where required, and keep a quiet, reverent manner, especially at Den Thuong. This is an active place of worship and national reverence, not merely a sightseeing stop.

Why Phu Tho Is Worth the Detour

Most travelers to Vietnam never leave the well-worn circuit, and Phu Tho asks a little effort and a little curiosity in return for its rewards. But for anyone who wants to understand Vietnam beyond its landscapes — to grasp who the Vietnamese believe themselves to be, and where the long thread of their history begins — there is no more meaningful place in the country.

To stand at Den Thuong on the summit of Nghia Linh, incense smoke drifting over a forest that has been sacred for millennia, is to stand at the source. And once you understand the source, the whole of Vietnam reads differently — every banh chung at Tet, every use of the word dong bao, every pilgrimage home carries the weight of a story that began, four thousand years ago, right here.

FAQ

What is Phu Tho known for?
Phu Tho is the ancestral land of Vietnam — the birthplace of the nation according to legend, home to the Hung Kings Temple (Den Hung) on Nghia Linh Mountain, the founding kingdom of Van Lang, and the annual Hung Kings Festival. Its worship of the Hung Kings is a UNESCO Intangible Cultural Heritage.

Who were the Hung Kings?
The Hung Kings (Hung Vuong) were the semi-legendary founders of Vietnam — traditionally a line of eighteen rulers who governed the first Vietnamese kingdom, Van Lang, from the region of present-day Phu Tho. They are regarded as the shared ancestors of the Vietnamese people.

When is the Hung Kings Festival?
It runs from the 8th to the 11th day of the third lunar month, with the main ceremony on the 10th day, usually falling in April. It has been an official national public holiday in Vietnam since 2007.

How do I get to Den Hung from Hanoi?
It's less than 90km northwest, about 90 minutes to two hours by car via the Noi Bai–Lao Cai Expressway, by train to Viet Tri Station, or by bus from My Dinh Bus Station.

What is the legend of the Hung Kings?
The dragon lord Lac Long Quan married the fairy Au Co, who bore a sac of 100 eggs hatching into 100 sons. Fifty followed their mother to the mountains and fifty their father to the sea; the eldest became the first Hung King and founded Van Lang in Phu Tho. This is why Vietnamese call themselves "children of the Dragon and Fairy" and "compatriots born from the same sac."

Is Phu Tho worth visiting for foreign travelers?
Yes, for those interested in history and culture. It offers the deepest insight into Vietnamese national identity of anywhere in the country, plus off-the-beaten-path landscapes like the Long Coc tea hills and Xuan Son National Park that few foreign visitors ever see.