The first franc was a gold coin introduced in 1360 to pay the ransom of King John II of France. This coin secured the king's freedom and showed him on a richly decorated horse earning it the name "franc à cheval" (meaning "free on horse" in French). The obverse legend, like other French coins, gives the king's title as "Francorum Rex" ("King of the Franks" in Latin) and provides another reason to call the coin a franc. Its value was set as one "livre tournois" (a money of account). John's son, Charles V, continued this type. It was copied exactly at Brabant and Cambrai and, with the arms on the horse cloth changed, at Flanders. Conquests led by Joan of Arc allowed Charles VII to return to sound coinage and he revived the "franc à cheval". John II, however, was not able to strike enough francs to pay his ransom and he voluntarily returned to English captivity.