VAN HOERNE, Marie heiress of Duffel in Brabant ¹

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Marie married Alexander STEWART Earl of Mar and Garioch, jure uxoris, son of Alexander STEWART Lord of Badenoch then Earl of Buchan and Mariota MACKAY, by 1411.¹ (Alexander STEWART Earl of Mar and Garioch, jure uxoris was born about 1377 and died in 1435 ¹.)

  Marriage Notes:

"He (Alexander Stewart) returned to Scotland in the beginning of 1409. Some time between that and 1411 he married the heiress of Duffel in Brabant, and is styled Lord of Duffel in a writ of 17 March 1410-11, but it is said he was separated from her. An effort was certainly made in that direction, as in 1415, at the instance of Robert, Duke of Albany, Pope Benedict XIII. issued a commission to declare the marriage null which Alexander, Earl of Mar, had contracted in Brabant with Maria de Hoorne. He had lived with her eight days or so, and then returned to Scotland ; she having been previously married to one from whom she had separated without a judge's decree ; and the Earl now wished to marry another. The marriage, however, was not annulled, as on 18 December 1415 the Earl and Mary his wife received an indulgence to choose a confessor, and in a writ of 1432 she is described as Marie van Hoerne (daughter of William van Hoorne and Marie van Randerode), and it is said that her husband the Earl of Mar has not for a long time past been in Brabant, and is no more in a position to go there."

from Scots Peerage (vol 5) ¹