Thread:MoonlightSelenia/@comment-32888859-20170827123322/@comment-1883159-20170828134703

Hello!

According to his article here, Tokugawa Mitsutomo bought Yamanbagiri Nagayoshi on 1681, and ever since then he stayed in Tokugawa Owari Branch, and now is kept in Tokugawa Art Museum.

As written in his wikia article's trivia section, Gotou was brought to the clan as Mitsutomo and Chiyohime's wedding gift. So yes, they shared the same master.