Date Masamune, renowned as the "One Eyed Dragon of the North" or Dokuganryu, was a formidable figure of the Sengoku period. He held the title of lord over Sendai and was distinguished for his tactical brilliance, fearless combat skills, and exceptional leadership. Amongst samurai circles, he was known for his loyalty, ethical conduct, ruthless determination, astute administration, and ambitious pursuits.
Born in Yonezawa Castle, now in Yamagata Prefecture, Masamune was the son of Date Terumune, the lord of Mutsu. Smallpox claimed his right eye during childhood, prompting its removal. This led his mother to deem him unfit to inherit leadership of the clan, advocating for his younger brother Kojiro instead. Matters took a dark turn when she attempted to poison Masamune, compelling him to take drastic measures. He had to end his brother's life to secure his own survival and maintain control.
Following his father's retirement, Masamune ascended to lead the Date clan, expanding its influence by conquering neighboring domains while consolidating his own. When the Hatakeyama clan couldn't resist Masamune's advances into their territory, they appealed to his father for intervention. Unable to rein in his son, Terumune was taken captive. Masamune, upon receiving this grim news during a hunting expedition, pursued the kidnappers and executed his own father on Terumune's orders. As further retribution, he ordered the families of the kidnappers to be tracked down, tortured, and executed.
In 1590, Toyotomi Hideyoshi, the nation's ruler, demanded Masamune's participation in the Siege of Odawara. Initially resistant, Masamune's eventual compliance angered Hideyoshi. Expecting execution for his initial defiance, Masamune presented himself before Hideyoshi, displaying no fear. To everyone's surprise, Hideyoshi spared his life, sensing potential use in the future. Masamune went on to demonstrate his loyalty during Hideyoshi's Korean campaigns.
Given lands at Iwadeyama by Hideyoshi, Masamune transformed the area into a thriving economic and political hub over 13 years. His financial acumen later turned Sendai from a modest fishing village into a prosperous city.
After Hideyoshi's passing, Masamune shifted his allegiance to Tokugawa Ieyasu, who granted him the Sendai Domain, purportedly yielding one million koku, though the actual output was 640,000 koku.
In the lead-up to the Battle of Sekigahara in 1600, Masamune supported the Tokugawa cause by engaging the Uesugi clan in the northern regions, enabling Ieyasu to focus on the growing Western allied forces. Although absent from the battlefield, Masamune's contributions greatly aided the Eastern victory.
After the Battle of Sekigahara, Date Masamune, along with 52,000 of his samurai and their families, moved from Iwadeyama to the village of Sendai.
Here, Masamune launched numerous public projects to enhance the land and embellish the Tohoku region, turning it into a sought-after tourist destination. He fostered trade, permitting foreign missionaries and traders to operate within his domain. He even utilized foreign shipbuilding techniques to construct the Date Maru, which embarked on Japan's inaugural diplomatic mission to the Philippines, Mexico, Spain, and Rome for an audience with the Pope, and to secure trading privileges with various nations along the route.
Masamune fathered 16 children, including two illegitimate ones, with his wife and seven concubines. His attire was characterized by relatively plain black armor and a distinctive helmet crest resembling a large, thin crescent moon. He is often depicted wearing a sword guard in place of an eye patch. Date Masamune passed away at the age of 68 on June 27, 1636.
See also
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Matsudaira Kiyoyasu
Matsudaira Kiyoyasu (September 28, 1511 – November 29, 1535) served as the 7th lord of the Matsudaira clan during Japan's tumultuous Sengoku period. Renowned as the paternal grandfather of Tokugawa Ieyasu, one of Japan's "great unifiers," Kiyoyasu expanded his clan’s influence, bringing all of northern Mikawa Province under his control after subduing the Saigo clan. His power was further symbolized by the construction of Okazaki Castle, a testament to the Matsudaira’s growing dominance.
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Matsudaira Hirotada
Matsudaira Hirotada (June 9, 1526 – April 3, 1549) was a daimyo and lord of Okazaki Castle in Mikawa Province during Japan’s turbulent Sengoku Period. He is best known as the father of Tokugawa Ieyasu, the founder of the Tokugawa shogunate.
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Ikeda Tsuneoki
Ikeda Tsuneoki (1536 – May 18, 1584), also known as Ikeda Nobuteru, was a prominent daimyo of the Ikeda clan and a distinguished military commander during Japan's Sengoku and Azuchi-Momoyama periods. He served under the influential warlords Oda Nobunaga and Toyotomi Hideyoshi. Tsuneoki’s connection to Nobunaga began early, as his mother, Yotokuin, was Nobunaga’s wet nurse and later became a concubine to Oda Nobuhide, Nobunaga's father.
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Oda Nobutaka
Oda Nobutaka (1558–1583) was a samurai of the Oda clan, also known as Kanbe Nobutaka after being adopted as the head of the Kanbe clan, which governed the central region of Ise Province. He was the third son of Oda Nobunaga, born to a concubine named Sakashi. Nobutaka was referred to as "San Shichi," possibly because he was born on the seventh day of the third month in the Japanese lunar calendar. However, there is a theory suggesting he was born twenty days earlier than his elder brother, Oda Nobukatsu, but due to delays in reporting and the low status of his mother’s family, he was acknowledged as Nobunaga’s third son.
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Yamauchi Kazutoyo
Yamauchi Kazutoyo (also spelled Yamanouchi; 1545/1546? – November 1, 1605) was a prominent samurai and retainer who served Oda Nobunaga and later Toyotomi Hideyoshi during Japan's Sengoku and Azuchi-Momoyama periods. His father, Yamauchi Moritoyo, was a descendant of Fujiwara no Hidesato and a senior retainer of the Iwakura Oda clan, which opposed Oda Nobunaga. Moritoyo was also the lord of Kuroda Castle in Owari Province. Kazutoyo is especially renowned for his marriage to Yamauchi Chiyo, whose wisdom and resourcefulness played a key role in his rise to prominence.
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Saito Tatsuoki
Saito Tatsuoki (6 September 1548 - 1573) was a daimyo of Mino Province during Japan's Sengoku period and the third-generation lord of the Saito clan. He was the son of Saito Yoshitatsu and grandson of Saito Dosan. His mother was a daughter of Azai Hisamasa, making him a nephew of Azai Nagamasa and a relative of Oda Nobunaga's first wife, Nohime, who was also a daughter of Saito Dosan.
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Kyogoku Tadataka
Kyogoku Tadataka (1593–1637) was a Japanese nobleman and the head of the Kyogoku clan during the early 17th century, a pivotal time marked by the Tokugawa consolidation of power. His childhood name was Kumamaro, and he hailed from a lineage claiming descent from Emperor Uda (868–897). Tadataka was the son of Kyogoku Takatsugu and one of his concubines, with his paternal grandfather being Kyogoku Takayoshi.
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Matsudaira Naomasa
The late Muromachi period, also known as the Sengoku period, was an era of continuous conflict and upheaval, often likened to periods of chaos in Chinese history. This turbulent era was brought to an end by Tokugawa Ieyasu, who, with the support of loyal retainers, established the Edo Shogunate and became the ruler of Japan. Among Ieyasu’s descendants, Naomasa Matsudaira, his grandson, played a significant role during the Osaka Siege. He earned praise from his adversary, Nobushige Sanada (Yukimura Sanada), for his valor as a young warrior and maintained strong relations with successive Tokugawa shoguns.
