Journey back to the 14th century to the Seizan-so villa, the humble retirement home of the powerful lord Tokugawa Mitsukuni. Discover why this influential figure, known as Mito Komon, chose a life of rustic simplicity over palatial luxury. This story explores the philosophy of wabi-sabi and the profound peace he found in the quiet hills of Hitachi Ota, leaving a legacy that whispers through the wooden halls of his beloved retreat.
The road from Edo, the bustling heart of a nation at peace, was a long one. For Tokugawa Mitsukuni, grandson of the first shogun, Ieyasu, every mile was a deliberate shedding of skin. He was sixty-two years old, a man who had held immense power, a daimyo of the great Mito Domain, and a figure of consequence in the intricate politics of the shogunate. Yet, the procession that carried him toward the hills of Hitachi Ota in the spring of 1691 was not one of palanquins draped in silk, but of a man moving toward a quieter definition of wealth. He was headed for a villa he had constructed the year before, a place called Seizan-so, the “Western Hill Palace.” The name was grand, a deliberate irony borrowed from a Chinese poet-recluse. The reality was anything but. As he approached, the final gate was not a towering edifice of stone and lacquered cypress, but two simple pillars made from the rough, unfinished timber of kunugi—oak trees. This was the Kunugi-mon, the Oak Gate, a statement carved from the forest itself. It spoke not of what he could build, but of what he had chosen not to. Beyond it lay a one-story structure with a gentle slope to its heavy thatched roof. This was not a castle, nor a palace. It was a cottage, a scholar’s hermitage. Inside, the walls were rough, deliberately unadorned. This was a place built for a singular purpose, a purpose that had consumed Mitsukuni for decades and would occupy him until his death: the quiet, monumental task of writing the history of Japan.
For years, power had been his medium. As lord of Mito, a domain strategically vital to the Tokugawa shogunate, his life was one of public duty and ceremonial expectation. He had been a vigorous ruler, a patron of arts and learning, a man who understood the architecture of influence. The court at Edo, with its endless corridors and whispered allegiances, was a world he knew intimately. But another current had always run beneath the surface of his life. A deep intellectual curiosity, a reverence for the past, and a neo-Confucian sense of duty that extended beyond mere administration. He saw history not as a record of the powerful, but as a moral guide for the future. And he believed Japan’s story had not yet been properly told. This was the genesis of the *Dai Nihonshi*—the “Great History of Japan.” It was a project of audacious scale, an attempt to compile a comprehensive history stretching back to the nation’s mythological origins. In 1657, he had established the project, gathering scholars from across the land. But to truly oversee its completion, to immerse himself in the quiet labor of scholarship, he needed to step away from the noise. Retirement was not an end to his work; it was the final, necessary stage of it. In the winter of 1690, he handed control of the Mito Domain to his heir. The emperor, in recognition of his service, granted him a prestigious title, one that would echo through the ages: *Komon*. From then on, he would be known as Mito Komon.
Life at Seizan-so settled into a rhythm dictated by sunlight and scholarship. The villa was designed for this. Its thatched roof, thick with miscanthus reeds, was planted with irises at its peak. This was not for decoration. The flowers were a natural hygrometer; when their petals drooped from lack of moisture, water would be sprinkled on the roof to prevent the dry thatch from catching fire. It was a simple, elegant solution, a conversation with the environment rather than a command over it. His days were spent with his team of scholars, poring over ancient texts, debating chronologies, and shaping the narrative of the *Dai Nihonshi*. But his work was not confined to the ink-scented rooms of the villa. The surrounding landscape was his laboratory. Mitsukuni was a keen student of herbal medicine, and the gardens of Seizan-so were a living encyclopedia. He cultivated hundreds of medicinal plants, studying their properties, compiling his findings into a compendium of 397 herbs that he then distributed to the public, a gift of practical knowledge from a lord to his people. He walked the hills, not as a daimyo surveying his lands, but as a man reading a text. Every plant, every stone, every shift in the wind was a part of a larger story. This philosophy—finding profound beauty in the humble, the imperfect, and the unadorned—was a deep-seated part of his character. It was a life that found luxury in simplicity, a profound serenity in the quiet, focused pursuit of knowledge. He was not a hermit renouncing the world, but a scholar engaging with it on a more intimate, meaningful level.
On December 6, 1700, Tokugawa Mitsukuni died in his bedroom at Seizan-so. He was seventy-two. The *Dai Nihonshi*, the great work that had drawn him to this quiet corner of the world, was still unfinished. It would take his successors another century to complete it. The villa itself burned down in a wildfire in 1817 but was rebuilt two years later on a smaller scale, a testament to the enduring power of his memory. Today, it stands as a quiet monument, managed by a foundation bearing his family name, the air of a samurai's retreat still clinging to its simple wooden frame. The legacy he left behind was twofold. There was the monumental history, a foundational text for a nation. But there was also the story of Mito Komon, which grew into legend. He became a folk hero, the powerful lord who disguised himself as a commoner to travel the land, righting wrongs and dispensing justice, a figure of wisdom and humility. The story is a fiction, but like all good legends, it contains a deeper truth. It captures the essence of a man who possessed immense power but found his truest purpose in a small cottage with rough walls, under a roof of thatch and flowers, a man who understood that the greatest history is not always the one lived in a palace.