Dorothea von Habsburg, Heiress of Falkenburg, Durbuy and Dalem

from http://fmg.ac/Projects/MedLands/AUSTRIA.htm#Dorotheadied1572 v4.4 Updated 24 February 2021

Maximilian I had ten illegitimate children by unknown Mistresses:

DOROTHEA (1516-1572). Heiress of Falkenburg, Durbuy and Dalem. Emmius records the marriage arranged in Brussels “ante Eidus Novemb.” 1539 between “comiti Ennoni...fratre Ioanne” and “Dorotheæ” whose dowry was “Durbuyum oppidum...in finibus Lucelburgi principatus...Falcoburgii et Dalæ præfectura in ulteriore ripa Mosæ”[766]. Beninga records the marriage in 1539 of “Graven Johan tho Oostfreeslant” and “Dorothea van Ostenryck, Keyser Maximilians natuerliche dochter”[767]. No reliable indication has been found about the identity of Dorothea’s mother. m (contract Brussels 11 Nov 1539) JOHANN I “der ältere” Graf von Ostfriesland, son of EDZARD I “der Große” Graf zu Ostfriesland & his wife Elisabeth von Rietberg (1506-Schloß Falkenburg 6 Jun 1572).

from http://fmg.ac/Projects/MedLands/OLDENBURG.htm#Johanndied1572 v4.3 Updated 18 September 2020

Johann & his wife had two children:

a) MAXIMILIAN (Emden 1542-1600). Comte de Durbuy. m (Mechelen 14 Nov 1564) BARBE de Lalaing, daughter of PHILIPPE de Lalaing Graaf van Hoogstraten, Baron d’Escornaix & his wife Anne de Rennebourg.

b) ANNA . m JOST van Bronckhorst, son of --- (-killed in battle near Wachtendonk 1589). Graaf van Gronsfeld en Limburg 1588.