The bull is an extremely ancient figure in European mythology. Bulls appeared in Paleolithic cave art. Young men and women vaulted over bulls in Minoan Crete three and a half millennia ago. Zeus took the form of a bull to carry off Europa, the maiden who gave her name to Europe. Germanic tribes sacrificed bulls to Odin. The bull was worshiped for its fertility, strength and vitality. In heraldry, bulls appear most commonly cabossed and affronté, but can also appear passant, rampant and salient. The arms of the 1st Baron de Mauley show three bulls passant. Calves are also common, but cows and oxen are rare (though an ox fording a stream appears in the arms for the City of Oxford). Calves usually appear in groups, as with the three calves passant in the arms for John Henry Metcalfe. Bulls appear as charges, crests, or supporters. Bulls usually appear as a solid color, though they occasionally appear as pied, as in the arms for the Marquis of Abergavenny. The bull represents a dedicated father, male fertility, a fiery temperament, kingly power, true magnanimity, and valour.