Sumitomo Masatomo

In this Japanese name, the surname is Sumitomo.

Masatomo Sumitomo
住友 政友
Born	(1585-12-31)December 31, 1585 Sakai, Muromachi Japan
Died	September 17, 1652(1652-09-17) (aged 66) Kyoto, Edo Japan
Nationality	Japanese
Occupation(s)	Buddhist monk, businessman
Title	Founder of the Sumitomo Group

Sumitomo Masatomo (Japanese: 住友 政友, Hepburn: Sumitomo Masatomo, 31 December 1585 (O.S. 21 December 1585) – 17 September 1652) was a Japanese Buddhist monk and businessman credited with founding the eponymous Sumitomo Group. He was an 8th generation descendant of Sumitomo Tadashige. Sumitomo Tadashige said to be 22nd generation descendant of Taira no Takamochi from Kanmu Heishi clan who was a grandson of 50th Emperor of Japan, Emperor Kanmu. Originally, he was a Buddhist monk. During his lifetime, there were mainly two sects of Buddhist monks in Japan. Masatomo belonged to one of the two which later ceased to exist. Reluctant to join the other group of Buddhist monks, he turned to business to make a living. He started his business by selling books and medicines at first in a bookshop in Kyoto circa 1615.