An extremely rare example of English medieval metalwork is the silver gilt crown of Princess Margaret of York, dating from c1461. Margaret wore this crown at her wedding to Charles the Bold in Bruges in 1468, and later presented it to the altar of Our Lady in Aachen on her visit in 1475, thus sparing it from destruction in either the Reformation or English Civil War. The original leather case also survives and is displayed alongside. The crown was a major feature of the 'Gothic' Exhibition…