Vem gifte sig med Albrekt V av Mecklenburg?

Albrekt V av Mecklenburg, född 1397, död mellan 1 juni och 6 december 1423, var hertig av Mecklenburg från 1412 fram till sin död. Han var son till den svenska kungen Albrekt III och dennes andra gemål Agnes av Braunschweig-Lüneburg. Han grundade 1419 jämte sin kusin Johan IV det senare Rostocks universitet.

Han regerade som furst Albrecht V av Mecklenburg och som hertig Albrecht IV av Mecklenburg-Schwerin 1417−1423.

Albrekt var 1423 förlovad med, och den 23 maj 1423 troligen gift med, Margareta, en dotter till kurfurst Fredrik I. Albrekt dog barnlös.

Margaret of Brandenburg (1410 – 27 July 1465, Landshut) was a Princess of Brandenburg by birth and through successive marriages Duchess of Mecklenburg, Duchess of Bavaria-Ingolstadt and Countess of Waldenfels.

Margaret was a daughter of Elector Frederick I of Brandenburg (1371–1440) from his marriage to Elisabeth of Bavaria-Landshut (1383–1442 ), daughter of Duke Frederick of Bavaria-Landshut. Margaret's brothers were Frederick II and Albert III Achilles, who successively ruled Brandenburg.

She married in 1423 Duke Albert V of Mecklenburg, but he died shortly after his marriage, even before they could begin living together. Margaret received as dowry Dömitz and Gorlosen from her father.

On 20 July 1441 Margaret married Louis VIII of Bavaria-Ingolstadt (1403–1445), to secure peace in the land. Through this marriage, Louis regained possessions he had lost to Elector Frederick I during the Bavarian War of 1420–1422. Two children were born of this marriage. Both, however, died young.

In 1446, finally, Margaret secretly married her tutor, Count Martin of Waldenfels (d. 1471). This relationship has been incorporated into the tragedy Louis the Bearded by Georg Köberle, published in 1844.