Harada Munetoki
Munetoki soon entered the service of Date Masamune, and received Masamune's trust due to his valiant conduct in combat. At age 18 he was placed in charge of the Date clan's military affairs. He was easily visible in combat by his trademark golden sword, which measured 2.7 metres. One battle where Munetoki earned great distinction was the Battle of Suriage-ga-hara, where he commanded the detached unit and was able to take Hibara. In 1593, Munetoki joined Masamune when the latter deployed to Korea. However, he fell ill at Pusan and despite his wishes to  remain and fight, he was put on a ship bound for Hizen-Nagoya. His condition worsened en route, necessitating his disembarkation at Tsushima. He died in Tsushima later that same year. Masamune was so saddened by the untimely loss of Munetoki that he composed the set of poems titled The first letters of each of these poems formed an acrostic which spelled "Na-mu-a-mi-da-bu" ("Namu Amida Butsu", an invocation to the Amida Buddha).