Margaretha Van Valkenburg - Pedigree | FamilyCentral
 Abt 1318 - Bef 1364
 Abt 1283 - 15 Jul 1333
 Abt 1287 - Aft 1325
 Abt 1269 - 11 Jul 1302
 Abt 1270 - 19 Nov 1304
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