In the early part of the second millennium, definite clear attestations of bagpipes began to appear with frequency in Western European art and iconography. The Cantigas de Santa Maria, written in Galician-Portuguese and compiled in Castile in the mid-13th century, depicts several types of bagpipes. Several illustrations of bagpipes also appear in the "Chronique dite de Baudoin d’Avesnes", a 13th-century manuscript of northern French origin. Although evidence of bagpipes in the British Isles prior to the 14th century is contested, they are explicitly mentioned in "The Canterbury Tales" (written around 1380):