Margareta of Sternberg
Margareta of Sternberg (Czech: Markéta, Polish: Małgorzata; died aft. 5 June 1365) was a Moravian noblewoman and by marriage Duchess of Bytom.
She was the eldest child and only daughter of Jaroslav of Sternberg (Jaroslav ze Šternberka) by his second wife Margareta of Bílina (Machna z Bíliny). Margareta had two full-brothers, Aleš and Jan, and also two older half-brothers, Zdeněk (d. aft. 1408) and Smil (d. 1398), born from the first marriage of Jaroslav of Sternberg with a certain Eliška.