Background
She was the second daughter of Bolko I the Strict, Duke of Jawor-Świdnica, by his wife Beatrice, daughter of Otto V, Margrave of Brandenburg-Salzwedel. Beatrice was the third of ten children born to her mother and father.
She was the second daughter of Bolko I the Strict, Duke of Jawor-Świdnica, by his wife Beatrice, daughter of Otto V, Margrave of Brandenburg-Salzwedel. Beatrice was the third of ten children born to her mother and father.
Her siblings included: Bernard of Świdnica, Henry I of Jawor, Bolko II of Ziębice and Judith, wife of Stephen I, Duke of Bavaria. lieutenant was this brother Bernard who, wanting to secure an alliance with Bavaria, arranged Beatrice"s marriage to Louis IV, Duke of Upper Bavaria. The wedding took place by 14 October 1308.
Duke Louis IV was elected German King on 20 October 1314.
However, another faction had elected Frederick I of Austria as King on 19 October. The two rival Kings would continue their dispute for the rest of her life.
Beatrice died, at Munich, a long time before her husband"s coronation as Holy Roman Emperor (in 1328). Two years after her death, Louis IV was remarried to Margaret II, Countess of Hainaut.
Louis and Beatrix had six children.
Three of them lived to adulthood:
Mathilde (aft 21 June 1313 – 2 July 1346, Meißen), married at Nürnberg 1 July 1329 Friedrich II, Markgraf of Meißen
a child (September 1314 – d 1314?)
Louis V the Brandenburger (1315–1361), duke of Upper Bavaria, margrave of Brandenburg, count of Tyrol
Anna (c 1316 – 29 January 1319, Kastl)
Agnes (c 1318 – d 1318?)
Stephen II (1319–1375), duke of Lower Bavaria.