 In 1428 he inaugurated the union of the Münster and Cologne houses, which was sanctioned by papal decree, a few months after his death, and joined in 1441 by the house at Wesel.He died at Münster in 1439.Heinrich's influence was incalculable, in connection with the training and reform of the clergy, the cause of education, the spread of religious literature and the advancement of the spiritual life among the masses of the German people.