Proper noun
Masahisa
A Japanese male given name from Japanese
They divorced, as in the second theory, but Yoshiko took Musashi, who was 7 at the time, with her, and married Tasumi Masahisa. Source: Internet
The second wife of Tasumi Masahisa was the mother of Miyamoto Musashi. Source: Internet
After that she married Tasumi Masahisa. Source: Internet