In 1620 when Michał Piekarski tried to attack king Sigismund III Vasa, Opaliński threw himself between them, saving the king. He also probably snatched his ax and overpowered him.[7]
He was a supporter and trusted retainer of King Władysław IV Vasa, considered efficient and just. At the same time he was merciless in exploiting the crown lands he was entrusted as a starost.