Pieter Pietersz Hasselaer Dutch politician (1583-1651); mayor of Amsterdam (1582–1651) Parents Aecht Pietersdr. Pieter Dircksz. Hasselaer Children Agatha Hasselaer Agatha Hasselaer Siblings Dirck Hasselaer Balichgen Pietersdr. Hasselaer Gerrit Hasselaer, Pietersz. Nicolaes Hasselaer Partners Aeghje Hooft
