Shimotsuki Koushirou, One Piece Wiki

Shimotsuki Koushirou is a member of the Shimotsuki Family and a master swordsman, he was both the teacher of as well as the distant relative of Roronoa Zoro. He is also the father of the late Shimotsuki Kuina and son of Shimotsuki Kozaburo. He is the master of Isshin Dojo in Shimotsuki Village. Koushirou has black hair tied back in a long ponytail, his face is wrinkled and wears glasses with circular frames. He always wears a gray yukata and sometimes he has a beige haori over it with two crosse

Confirmed. [Chapter 942 Spoilers] : r/OnePiece

Roronoa Zoro - Wiki

Shimotsuki Kuina, One Piece Wiki

Shimotsuki Koushirou, One Piece Wiki

Shimotsuki Koushirou, One Piece Wiki

Shimotsuki Kozaburo, One Piece Wiki

One Piece chapter 1094 celebrates new Monsters anime featuring legendary swordsman Ryuma Shimotsuki

Shimotsuki Koushirou, One Piece Wiki

Shimotsuki Koushirou, One Piece Wiki