Fukushima Masayuki served as a bushō during the Azuchi-Momoyama and early Edo periods.

Masayuki was born as the seventh son of Bessho Shigemune.  His uncle was Fukushima Masanori.  Masanori’s eldest son (Masatomo) died at a young age, so Masayuki became the adopted heir of Masanori.  In 1599, Masayuki wed the adopted daughter of Tokugawa Ieyasu, Matehime (her natural father was Matsudaira Yasumoto).  In 1600, he deployed at the Battle of Sekigahara and made contributions in attacks on Takegahana Castle and Gifu Castle at the Battle of Takegahana Castle.

In 1607, however, Masayuki was subject to a claim by Masanori to the Edo bakufu that Masayuki had, as of late, become wild and was engaging in violent conduct.  This resulted in his incarceration.  It is said this report may have been a falsehood to clear the way for Masanori’s natural son, Fukushima Tadakatsu, to become Masanori’s successor.  In the spring of 1608, Masayuki died of starvation at the age of twenty-four.

Masayuki and, his wife, Matehime, had one son, and Matehime took him with her when she returned to her original home.  Matehime later married Tsugaru Nobuhira who treated Masayuki’s son as a younger brother.  Masayuki’s son then became the son-in-law of Daidōji Naohide, a retainer of the Tsugaru clan, and assumed the name of Daidōji Naohide (pronounced the same but written with a different character).