Bolesław III Wrymouth, also known as Boleslaus the Wry-mouthed, was the duke of Lesser Poland, Silesia and Sandomierz between 1102 and 1107 and over the whole of Poland between 1107 and 1138. He was the only child of Duke Władysław I Herman and his first wife, Judith of Bohemia.

Lesser Poland, often known by its Polish name Małopolska, is a historical region situated in southern and south-eastern Poland. Its capital and largest city is Kraków. Throughout centuries, Lesser Poland developed a separate culture featuring diverse architecture, folk costumes, dances, cuisine, traditions and a rare Lesser Polish dialect. The region is rich in historical landmarks, monuments, castles, natural scenery and UNESCO World Heritage Sites.