The tomb of ‘blind’ King John of Bohemia in the Cathedral of Notre Dame, Luxembourg. Erected in the mid-seventeenth century over the original grave, the inscription points out that John was the son of the [Holy Roman] Emperor Henry VII, the father of Emperor Charles IV and the grandfather of Emperors Wenceslas and Sigismund. He was, of course, killed at Crécy in 1346, not in 1340 as shown.