Hvem giftede sig med Beatrice of Brandenburg?

Beatrice of Brandenburg (Polish: Beatrycze brandenburska, German: Beatrix von Brandenburg; c. 1270 – before 26 April 1316), was a German princess and a member of the House of Ascania in the Brandenburg branch. By her two marriages she was Duchess of Świdnica and Koźle-Bytom-Siewierz.

She was the second daughter of Otto V the Long, Margrave of Brandenburg-Salzwedel, by his wife Judith of Henneberg, daughter of Count Herman I of Henneberg and heiress of Coburg and Schmalkalden.

Władysław of Bytom (1277/83 – around 8 September 1352), was a Duke of Koźle during 1303-1334, Duke of Bytom from 1316, Duke of Toszek from 1329 and Duke of Siewierz during 1328–1337.

He was the second son of Duke Casimir of Bytom by his wife Helena.

Bolko I van Schweidnitz ook bekend als Bolko I van Jauer bijgenaamd de Strenge (circa 1253 - 9 november 1301) was vanaf 1278 hertog van Jauer, vanaf 1286 hertog van Löwenberg en vanaf 1291 hertog van Schweidnitz en hertog van Münsterberg. Hij behoorde tot de Silezische tak van het huis Piasten.