During a negotiation of making peace under the terms that the castle would surrender and the lives of people in the castle would be spared in exchange for the seppuku of Mitsunari's older brother and father, Yoshimasa's forces broke into the castle and it brought many deaths.
三成の兄と父が切腹する条件で開城して城の者の助命するという内容で講和の交渉中に、佐和山城に突入し多くの死者を出したわけではある。