"William IX Palaeologus (10 August 1486 – 4 October 1518) was marquess of Montferrat from 1494 until his death. He was a member of the House of Palaiologos, which had once ruled the Byzantine Empire." - (en.wikipedia.org 31.01.2020)
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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.)