The Kingdom of Croatia-Slavonia was created in 1868, when the former kingdoms of Croatia and Slavonia were joined into one single kingdom (the full civil administration was introduced in the Kingdom of Slavonia in 1745 and it was, as one of the Lands of the Crown of St. Stephen, administratively included into both Kingdom of Croatia and Kingdom of Hungary, but it existed virtually until 1868). The Croatian parliament, elected in a questionable manner, confirmed the subordination of Croatia–Slavonia to Hungary in 1868 with signing of Hungarian–Croatian union constitution called the "Nagodba" (Croatian–Hungarian Settlement, known also as Croatian–Hungarian Agreement or Hungarian–Croatian Compromise of 1868). This kingdom included parts of present-day Croatia and Serbia (eastern part of Syrmia).