|Beatrice of Silesia|
|Queen consort of Germany|
|Died||24 October 1322 (aged 31–32)|
|Spouse||Louis IV, Holy Roman Emperor|
|Issue||Matilda, Margravine of Meissen|
Louis V the Brandenburger
Stephen II, Duke of Bavaria
|Father||Bolko I the Strict|
|Mother||Beatrice of Brandenburg|
Beatrice of Silesia (also known as Beatrice of ?widnica; Polish: Beatrycze ?widnicka, German: Beatrix von Schweidnitz ; 1290 - 25 August 1320) was a Polish princess member of the House of Piast in the Silesian branch of Jawor-?widnica and by marriage Duchess of Bavaria and German Queen.
Seven years after the death of Beatrice's father and the birth of her posthumous sister, Anna, her mother Beatrice was remarried to W?adys?aw of Bytom. From this marriage, Beatrice and her siblings gained two half-siblings: Casimir of Ko?le and Euphemia, wife of Konrad I of Ole?nica.
After her father's early death in 1301, Beatrice and her siblings were placed under the tutelage of their maternal uncle Herman, Margrave of Brandenburg-Salzwedel until 1305, when the oldest son of Bolko I, Bernard, assumed the government of his domains and the guardianship of his younger siblings, including Beatrix.
It 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. During her marriage, Beatrice gave birth to six children, but only three survived to adulthood: Matilda -by marriage Margravine of Meissen-, Louis V the Brandenburger -later Duke of Upper Bavaria, Margrave of Brandenburg and Count of Tyrol- and Stephen II - later Duke of Lower Bavaria.
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. She was one of two rival German queens, with Isabella of Aragon, wife of Frederick I.
Louis and Beatrix had six children; three of them lived to adulthood: