The Sanada clan was a prominent samurai family in Japan during the late Edo period and the Sengoku period. They were known for their strategic prowess and played significant roles in various battles, particularly during the Siege of Osaka in the early 17th century. The clan's most famous leader, Sanada Yukimura, is celebrated for his bravery and tactical skills. The Sanada clan's stronghold was the Sanada Castle, located in present-day Nagano Prefecture. They were loyal vassals to the Takeda clan and later served the Tokugawa shogunate. The clan's legacy continues to be remembered in Japanese culture through literature, theater, and historical reenactments.