Gamō Ujisato

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Gamō Ujisato (蒲生氏郷, Gamō Ujisato^?) (1556–March 17, 1595) was a daimyo of the Sengoku and Azuchi-Momoyama periods of Japanese history. Ujisato was the heir and son of Gamō Katahide, lord of Hino Castle in Ōmi Province. Ujisato succeeded his father as lord of that castle, and subsequently held Matsusaka (Ise Province) and finally Aizuwakamatsu Castle in Mutsu Province.

In 1568, Oda Nobunaga defeated the Rokkaku clan, whom Katahide served. Katahide then became a retainer of Nobunaga, and his son Ujisato married Nobunaga's daughter Princess Fuyu. Ujisato fought on many occasions, including at the Battle of Anegawa (1570) and the Battle of Nagashino (1575). After the assassination of Nobunaga in 1582, Ujisato became a retainer of Hashiba (later Toyotomi) Hideyoshi.

Hideyoshi granted Ujisato a fief evaluated at 120,000 koku at Matsusaka in Ise Province (present-day Mie Prefecture). Ujisato then fought in the battles of Komaki and Nagakute (1584), the campaign in Kii Province (1585), the Siege of Odawara (1590), and the Punishment of Ōshū (1590). For his role in the last battle, he received a 420,000 koku fief with its headquarters at Kurokawa Castle in Aizu. He renamed the castle Wakamatsu, the name it has today.

In preparation for the Japanese invasions of Korea, Ujisato proceded in 1592 to Hideyoshi's base in Nagoya in Hizen Province. There he fell ill, and died at age 40 at Fushimi Castle in 1595.

Ujisato was a Kirishitan daimyo who took the name Leo at baptism.