Willem Adriaensz Key He was at least 25 years old at the time of his father's death in 1541 (otherwise he would have had a guardian appointed) and may well have left Breda long before this. He had certainly gone by early June of that year, when his older brother Wouter returned to Breda from Antwerp and represented him in the division of their father's estate. By then Willem may have been studying with Lambert Lombard in Li?ge, along with Frans Floris, as is claimed by van Mander. He may also have received some earlier training in the Antwerp workshop of Pieter Coecke van Aelst, who had a pupil listed as 'Willem of Breda' in 1529-30.