Vem gifte sig med Eufemia ks. Piastówna-Śląska?

Albert I (c. 1240 – 1 April 1304), a member of the House of Gorizia (Meinhardiner dynasty), ruled the counties of Gorizia (Görz) and Tyrol from 1258, jointly with his elder brother Meinhard IV. In 1271, the brothers divided their heritage and Albert became sole ruler of the Gorizia estates until his death. His descendants, known collectively as the Albertine line, ruled the County of Gorizia until the extinction of the House in 1500.