Soon after settling, Corbinian denounced Grimoald's marriage to his brother's widow, Biltrudis, though Grimoald had already repented of his incest. This incited his anger and the chagrin of his wife, who Corbinian, labeling him a foreign interloper. Finally, she arranged to have him murdered. Corbinian fled Freising until Grimoald was killed and Biltrudis carried off by invaders in 725. Corbinian returned on the invitation of Grimoald's successor, Huebert, and continued his apostolic labors at Freising until his own death in 730.