From surviving documentation we know that around 1437, a representative of the family Raczków, Jakub Tabutowicz with the coat of arms of Łabędź, received from Michael Žygimantaitis son of Sigismund Kęstutaitis, Duke of Lithuania, wilderness areas located along the river called the Biała River [REF].
Jakub Raczków divided the land between his four sons: Nicholas, John, Wenceslas and Jundziłła.