a Dominican friar who served as the Bishop of Haarlem and the last direct Abbot of Egmond Abbey from 1570 to 1578. Van Mierlo was named the Bishop of Haarlem and the Abbot of Egmond Abbey in March 1570 by Pope Pius V. He was welcomed to that city in early 1571, where he was consecrated a bishop on February 11 of that year in the original Cathedral of St. Bavo by Franciscus van der Velde, the Bishop of Antwerp. The following year, however, on December 4, 1572, the cathedral suffered the iconoclastic destruction of the Beeldenstorm and temporarily became the scene of Calvinist services, which lasted until the end of the Siege of Haarlem.
