 The Griffin dukes lost the area to the Samborides during the following years, and the next surviving documents mentioning the area concern donations made by Samboride Swietopelk II, dating to 1236 (two documents) and 1240.In the earlier of the two 1236 documents, a Johann "castellanus de Slupcz" is mentioned as a witness, Schmidt considers this to be the earliest mention of the gard, since a castellany required the existence of a gard.The first surviving record explicitly mentioning the gard is from 1269