Frères de la vie commune
Adrian was probably raised in a house on the corner of the Brandstraat and Oude Gracht that was owned by his grandfather Boudewijn (Boeyen, for short). His father, a carpenter and likely shipwright, died when Adrian was 10 years or younger. Adrian studied from a very young age under the Brethren of the Common Life, either at Zwolle or Deventer and was also a student of the Latin school (now "Gymnasium Celeanum") in Zwolle.