The coinage of Alexander I, king of Yugoslavia from 1921-1934 and regent of Serbia from 1914-1921, was as follows: in 1920, the Yugoslav crown replaced the Serbian dinar, which was introduced by Alexander as regent during World War I. The Yugoslav crown was gold-backed and a member of the Latin Monetary Union. The coins of the crown bore the portrait of Alexander and the name of the Kingdom of Serbs-Croatians-Slovenes was written on them. In 1925, the Yugoslav crown was replaced by the Yugoslav dinar, the value of which was 1:1 to the crown. The dinar coins also bore Alexander's portrait, but the name of the Kingdom of Yugoslavia, which was introduced in 1929, was written on it. The dinar coins were made of a variety of materials, such as silver, nickel, aluminum, and bronze. In 1931, the Yugoslav dinar devalued to 56.4 dinars to the British pound. After the devaluation, new coins were minted that were smaller and contained less precious metal. In addition to the coins bearing the portrait of Alexander I, there were also coins with coats of arms depicting the symbol of the Yugoslav state. In 1934, Alexander was the victim of an assassination attempt in Marseille, and his son, II. Peter inherited the throne. In addition to the portrait of the king, the date of his death was also included on the coins minted in his memory. II. Coins minted under Peter show the portrait of the young king, who was 11 years old when his father died.