Karatsu

Karatsu was a ronin shugenja.

Tyrant
After Karatsu was cast out from his clan he established a small city in the Great Northern Mountains. He was a charsimatic leader, and many followed him. Over time it became apparent that he was a madman, and led the city as a tyrant.

Son
Karatsu had a son, Kuronada.

Plague War
In 1172, during the Plague War, Karatsu became concerned that the war would disrupt his little "empire" hidden away in the mountains. The only threat to him was his son, Kuronada, so he began travelling the Empire seeking his son.