GCL3137186: KING ARTHUR & KNIGHTS King Arthur and his Knights at the Round Table. Woodcut from 'Tristan,' Paris, c.1506. / Bridgeman Images

MEP3706313: Phallus-shaped fruit hanging from the tree of the abundance, 13th century (fresco) / Bridgeman Images

MEP3706314: A female figure keeps a wild beast on a lead, 13th century (fresco) / Bridgeman Images

MEP3706317: Two eagles, 13th century (fresco) / Bridgeman Images

MEP3706325: Phallus-shaped fruit hanging from the tree of the abundance, 13th century (fresco) / Bridgeman Images

MEP3706329: Phallus-shaped fruit hanging from the tree of the abundance, 13th century (fresco) / Bridgeman Images

MEP3706333: Leaves and two bird outlines, 13th century (fresco) / Bridgeman Images

MEP3706337: Phallus-shaped fruit hanging from the fertility tree, 13th century (fresco) / Bridgeman Images

MNX3931153: Glenfaba Hoard, deposited c.1035 (silver), European School / Bridgeman Images

XOS5381912: Louis IV of France (920 or 921-954), 1661 (engraving), Bailliu, Pieter de (1613-after 1660) / Bridgeman Images

GLH5915700: The Siege of Waterford, The City taken by Assault, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915702: Penance of Henry before the Shrine of Thomas à Becket / Bridgeman Images

GLH5915738: Baliol Doing Homage for the Crown of Scotland, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

DPS3254349: St Multose Church, Kinsale, Co Cork, Ireland; Exterior View Of A 12Th Century Church (photo) / Bridgeman Images

MEP3706315: Wild beast, 13th century (fresco) / Bridgeman Images

MEP3706327: Phallus-shaped fruit hanging from the tree, and eagles, 13th century (fresco) / Bridgeman Images

MEP3706332: Phallus-shaped fruit hanging from the fertility tree, 13th century (fresco), Unknown Artist, (13th century) / Bridgeman Images

MEP3706335: Phallus-shaped fruit hanging from the fertility tree, 13th century (fresco) / Bridgeman Images

GCL3134887: FRANCE: LES EYZIES A view of the Château de Tayac, home of the Musée National de Préhistoire, embedded in a cliff at Les Eyzies-de-Tirac-Sireuil, Dordogne, France. Photographed c.1975. / Bridgeman Images

GCL3153334: SCRIBE: PAOLO ATTAVANTI Woodcut from Paolo Attavanti's 'Breviarium totius juris canonici,' Milan, Italy, 1497. / Bridgeman Images

GCL3364473: ZODIAC: LIBRA, 1482 Libra, the scales. Zodiacal woodcut from Gaius Julius Hyginus' 'Poeticon Astronomicon,' printed at Venice, Italy, 1482. / Bridgeman Images

XOS5242324: Moses striking water from the rock for the Israelites, c.1250–62 (tempera and gold on parchment), Italian School, (13th century) / Bridgeman Images

GLH5915776: Matthew Paris, English Benedictine Monk, Chronicler and illuminated Manuscripts Artist (1200-1259), From a Drawing by himself in Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915686: Great Seal of Stephen, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915665: Harold, from the Bayeux Tapestry, Harold II Riding on Horse with Hawk Perched on his Hand, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915720: John refusing to sign Magna Charta when first presented to him, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915722: Dover Castle, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915645: The Army of Peter the Hermit, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

GLH5915662: Bishop and Lords, Illustration from John Cassell's Illustrated History of England, Vol. I from the earliest period to the reign of Edward the Fourth, Cassell, Petter and Galpin, 1857 (litho) / Bridgeman Images

IBE5378622: Imprisonment and decapitation of Saint Paul, detail of the sculpted bas-reliefs of the door of the monastery of Santa Maria de Ripoll, Spain, 12th century (stone bas-relief), Catalan School, (12th century) / Bridgeman Images

XIR156989: Virgin and Child (wood) (b/w photo), French School, (12th century) / Bridgeman Images

UIG1569701: Choir Performing During A Mass in Notre Dame De Paris Cathedral, Paris, France (photo) / Bridgeman Images

UIG1569526: Room in the Abbey of Mont-Saint-Michel, France (photo) / Bridgeman Images

UIG1569532: Saint Etienne Chapel in the Abbey of Mont-Saint-Michel, France (photo) / Bridgeman Images

UIG1569535: Stairs to the Northern Tower, Mont-Saint-Michel, France (photo) / Bridgeman Images

UIG1569538: Houses in the Fortified Village and Abbey of Mont-Saint-Michel, France (photo) / Bridgeman Images