Two of my players will play Clan Ronins and I was looking to help them with their origin:
Yoritomo Courtier - Lost her lord by seppuku when he failed his duty.
Usagi Bushi - His father was falsely accused and executed of being a Kolat, however his family was spared by the intervention of a Kitsuki Investigator, but they were cast out as Ronin.
Are these good enough reasons?
I'm open to suggestions.