Poor relations with older brother Yoshiie almost led to battle with the retainers surrounding Kawachi Province in May, 1091.
Yoshiie had appointed his fourth son, Minamoto no Yoshitada, his successor.
On the night of March 13, 1109, an incident occurred in which Yoshitada was attacked, and he died five days later.
During his exile in Sado in 1132, Yoshitsuna was again hunted down by Minamoto no Tameyoshi and committed suicide.
Following this it came to light that his being accused of killing Yoshitada was a false charge and that the true perpetrator was Minamoto no Yoshimitsu.