Former Nine Years' War
Skirmishes were fierce and many , but few major battles were fought until the Battle of Kawasaki in 1057 . Abe no Yoritoki had been killed shortly before , and the Minamoto were now fighting his son , Abe no Sadato , who defeated them at Kawasaki and pursued them through a blizzard . 
<triplet> Battle of Kawasaki <subj> 1057 <obj> point in time