One of Sibotho's successors, the knight Gotsche II Schoff (who died in 1420), bought extensive possessions in the foreland of the Riesengebirge Giant Mountains and Iser Jizera Mountains at the end of the fourteenth century: the Kynast and Greiffenstein dominions. The Schaffgotsch family thus became the most important noble family in the Jelenia Góra Valley (Hirschberger Tal). In 1403, Gotsche II donated the church at Warmbrunn to the Cistercian provost. His family cherished the memory of Gotsche II Schoff, the originator of their wealth, by adopting the sobriquet Gotsch. Later, both names were connected as Schaffgotsch.