sentences:  Until the 18th century, the Habsburg Kingdom of Croatia included only a small north-western part of present-day Croatia around Zagreb, and a small strip of coastland around Rijeka that was not part of the Ottoman Empire or part of the Habsburg Military Frontier.Between 1744 and 1868 the Kingdom of Croatia included a subordinate autonomous kingdom, the Kingdom of Slavonia.The territory of the Slavonian kingdom was recovered from the Ottoman Empire, and was subsequently part of the Habsburg Military Frontier for a period.