"Catherine of Brunswick-Lüneburg (1395 – 28 December 1442, Grimma) was a member of the House of Welf, a princess of Brunswick-Lüneburg and by marriage, the Electress of Saxony." - (en.wikipedia.org 17.03.2021)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)