Qui a épousé Ladislas de Bytom?

Ladislas de Bytom (polonais : Władysław bytomski ; (né vers 1277-1283 – mort entre le 16 septembre 1351 et le 8 septembre 1352), fut duc de Koźle entre 1303 et 1334, duc de Bytom à partir de 1316, duc de Toszek à partir de 1329 et duc de Siewierz entre 1328 et 1337.

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.