can you help me?

>
> hello everyone. I was wondering if you guys could help me find a
> certain samurai? I remember reading aout him but cannot remember his
> name. From what I remember he was 13 when he first became a samurai
> and he had a form of yoshi in his name somewhere. If you could ell me
> his name or even give me some information on him I would appreciate it
> very much! Also I would like some really good information on the
> Minomoto familly evolving around Yoshitsune Minomoto,as well as
> something about Taira no Shigemori and temoe Gozen. Thank you!
>