of Kagetsuna and Masamune. "Three Great Men" of Date clan Katakura Kagetsuna (片倉 景綱, 1557 – December 4, 1615) was a samurai of the Katakura clan, also known by his court title, Bichū no Kami (備中守), or more commonly, as Katakura Kojūrō. Date Shigezane (伊達 成実, 1568 – July 17, 1646). A senior retainer of the Date clan of Sendai, he was a cousin of Date Masamune and founder of the Watari-Date clan. Oniniwa Tsunamoto (鬼庭 綱元) (1549 – July 13, 1640). Deeply trusted by Masamune, he was made a senior retainer at the young age of 35. Retainers Oniniwa Yoshinao Rusu Masakage Shiroishi Munezane Kokubu Morishige Yashiro Kageyori Tamura Kiyoaki Ōuchi Sadatsuna Hasekura Tsunenaga Katakura Shigenaga Inawashiro Morikuni Date clan's prominent castles Yonezawa Castle: original base of power for the Date clan from 1548 and possibly Masamune's birthplace. Tateyama Castle: Date Terumune spent retired life in the castle. There is a possibility Date Masamune was born in Tateyama castle. Obama Castle: Masamune stayed in the castle from 1585 to 1586. Kurokawa Castle: original base of power for the Date clan from 1589 to 1591. Iwadeyama Castle: original base of power for the Date clan from 1591 to 1601. Aoba Castle: original base of power for the Date clan from 1601. Wakabayashi Castle: Masamune's fortified residence but now Miyagi prison is on site, He spent most of his time in the castle after he reconstructed it in 1627. Nihonmatsu Castle: Katakura Kagetsuna, Date Shigezane Hachōme Castle: Date Sanemoto Matsumori Castle : Kokubu Morishige Fukushima Castle: Date Harumune Ōmori Castle: Date Sanemoto, Date Shigezane Shiroishi Castle: Katakura Kagetsuna Iwakiri Castle: Rusu Masakage Watari Castle: Watari Motomune, Katakura Kagetsuna In popular culture Like many figures of the Sengoku period, Date Masamune has been featured in literature, film, manga, anime, video games, and other media. There are a few prominent and notable examples. In the Iver P. Cooper 1632 series book 1636: Seas of Fortune, Masamune is a prominent character in the short novel Rising Sun which is set in the North Pacific region focusing on Japan's expansion into North America. Masamune is the protagonist of the anime series Masamune Datenicle, produced by the city of Date in collaboration with Fukushima Gainax in order to promote the city's historic connection to the Date Clan. In this series, he is depicted as a child taking on the role of leader of his clan for