Cornelis van Amstel van Mijnden is a documented Jeruzalem pelgrim. At his return he was painted together with his fellow Jeruzalem pelgrims by Johan van Scorel. The painting at the moment can be found in the Utrecht Centraal Museum, in the Netherlands.
Beautifully illustrated book on the Crusades.
Bruno Lagrange ISLAM et CHRETIENTE. Deux siecle de guerre (1095 - 1270) Les croisades. Editions de Lodi.