This 22nd volume of Chateau Gaillard, a biennial international conference devoted to the study of medieval castles, was held in Voiron, Isere in France in 2004. This volume contains 42 papers from the conference on various subjects including: the Castle of Heusden in the Netherlands; Irish tower houses; 13th century wall paintings in the ruined castle of Sarravalle in Switzerland; the last Catholic castle in Norway; the Roulbeau Castle in Switzerland; early castles in East Anglia; fortifications in France during the Norman invasions. Papers in various languages.