After a period of self-rule, Croatians agreed to the Pacta Conventa in 1091, submitting themselves to Hungarian authority. By the mid-1400s, concerns over Ottoman expansion led the Croatian Assembly to invite the Habsburgs, under Archduke Ferdinand, to assume control over Croatia. Habsburg rule proved successful in thwarting the Ottomans, and by the 18th century, much of Croatia was free of Turkish control. | After a period of self-rule, Croatians agreed to the Pacta Conventa in 1091, submitting themselves to Hungarian authority. By the mid-1400s, concerns over Ottoman expansion led the Croatian Assembly to invite the Habsburgs, under Archduke Ferdinand, to assume control over Croatia. Habsburg rule proved successful in thwarting the Ottomans, and by the 18th century, much of Croatia was free of Turkish control. |