Complex sentence: Siberechts stood at the beginning of a long tradition of Flemish painters who made topographical paintings of the estates of the British nobility which includes artists such as Peter Tillemans, Pieter Andreas Rijsbrack and Hendrik Frans de Cort.
Split into simpler sentences: Siberechts stood at the beginning of a long tradition of Flemish painters who made topographical paintings of the estates of the British nobility. These artists include Peter Tillemans, Pieter Andreas Rijsbrack and Hendrik Frans de Cort.