Fujiwara no Chikamasa
Fujiwara no Chikamasa was an eleventh-century Fujiwara courtier who, tradition records, was exiled to Kutsuna Island in Iyo after falling into disgrace. In 1084 he settled there as lord of the Kutsuna and Hashira island groups in the Seto Inland Sea and launched reclamation works.
In 1086 he founded Choryo-ji temple. His son Fujiwara no Chikatomo carried on the work, opening the six Kutsuna and five outer Hashira islands by about 1096. The seafaring Kutsuna clan later claimed him as its ancestor.