From Ryuma’s Vivre Card
Epithets: “The Legendary Samurai” Shimotsuki Ryuma “Master Sword God”
Former Samurai of Wano Country
Thriller Bark/General Zombie
Ship: Thriller Bark
Birthday: November 6
Age: He passed away at 47
Origin: Grand Line Wano Country
Favorite food: Curry
Before??: Born in the Ringo region of Wano Country.
Before??: He obtained meito Shusui.
Before??: He cut down the dragon that appeared in the sky of Wano Country Capital.
Before??: He lost his life.
Before??: His body and Shusui were stolen.
Before??: He became General Zombie through the hands of Moria.
Before??: After his fight with Zoro, he gave him Shusui.
FROM CHAPTER 942
So, we have Shimotsuki Ryuma, the Daimyo of Hakumai: Shimotsuki Yasuie, his daughter O-Toko, Shimotsuki Village where Zoro trained with Koushirou and Kuina, and Zoro was born in November(=”Shimotsuki” in old japanese).