==References====Sources==* Hans Devisscher, "Keirinckx Cierings; Cierinx; Keerinckx; Keirincx; Keirings; Keyrincx, Alexander "Grove Art Online".
* Hans Devisscher, "Keirinckx Cierings; Cierinx; Keerinckx; Keirincx; Keirings; Keyrincx, Alexander " "Grove Art Online".