Yorimasa reached the relatively elevated heights of junior third rank, with the position of Provisional Master of the Right Capital Office. He was killed at the Battle of Uji River on the 26th Day of the Fifth Month Jijō 4 (1180) at the advanced age of 77. His personal poetry collection, the prosaicly titled Minamoto Sanmi Yorimasa Shū (‘The Collection of Third Rank Minamoto Yorimasa’) is extant, but the poem mentioned here does not appear in it.