French School, (13th century); French. Medium: silver gilt and rock crystal. Date: 13th Century. La Crosse de l'abbesse du Lys; possibly a gift of Queen Blanche of Castile (1188-1252) who founded the abbey in 1244 with her son, Saint Louis; agneau pastoral en cristal de roche; in 1253 the heart of Blanche was removed from Queen Blanche's other foundation of Maubuisson and interred at Lys; Provenance: Musee Lambinet, Versailles, France / Giraudon. Photographic Rights The Bridgeman Art Library.