Original: The Treaty of Berlin was signed on July 28, 1742 between Austrian archduchess Maria Theresa and Frederick II of Prussia. Based on the terms of the treaty, Maria Theresa ceded most of Silesia to Frederick except for the districts of Troppau, Teschen, and JÃ gerndorf.
Simplified: Based on the treaty, Maria Theresa gave most of Silesia to Frederick.