The Samborides (German: Samboriden) or House of Sobiesław (Polish: Sobiesławice) were a ruling dynasty in the historic region of Pomerelia.

Swiętopełk received Pomerelia as vassaldom from his suzerain, the Polish High Duke Leszek I the White of the Piast dynasty in 1216 or 1217.

Swiętopełk II was the greatest military commander of the dynasty, having defeated various armies of Piast, Prussian, Danish, German and Griffite invaders during his long reign.

His brothers Sambor II and Ratibor ceded some of their holdings to the Teutonic Knights allowing the Order State to get a first important foothold on the right bank of the Vistula River.

As a matter of necessity when fighting for his throne, he pledged feudal homage from a couple of towns to the Ascanian margraves of Brandenburg by signing the Treaty of Choszczno in 1269.