The Kingdom of Croatia–Slavonia was ruled by the emperor of Austria, who bore the title "King of Croatia, Slavonia and Dalmatia" and was confirmed by the State Sabor (Parliament of Croatia–Slavonia or Croatian–Slavonian Diet) upon accession. The King's appointed steward was the ban of Croatia and Slavonia. On 21 October 1918, Emperor Karl I, known as King Karlo IV in Croatia, issued a Trialist manifest, which was ratified by the Hungarian side on the next day and which unified all Croatian Crown Lands. One week later, on 29 October 1918, the Croatian State Sabor proclaimed an independent kingdom which entered the State of Slovenes, Croats and Serbs.