Na 1102 alaeze Croatia na alaeze Hungary nke nwere onwe ha na mbụ banyere njikọ onwe onye ma bụrụ otu Eze, Ladislaus nke Mbụ na-achị ha. Mgbe mmeri ndị Ottoman na mmeri dị egwu na Agha Mohács na 1527, ndị isi Croatia họpụtara Eze Ukwu Rom Dị Nsọ Ferdinand nke Mbụ dị ka eze ọhụrụ nke Croatia. E kewara ndị isi Hungary ma ndị Habsburgs jikọtara Alaeze Hungary, na-edebe Croatia na Hungary n'okpuru otu okpueze. N'oge Mgbanwe Ọchịchị Hungary nke 1848
Croatia kwadoro ndị Austria ka Ban Josip Jelačić nke Croatia nyere Austria aka imeri ndị agha Hungary na 1849 ma webata oge Germanisation. Ka ọ na-erule afọ ndị 1860, ọdịda nke iwu a pụtara ìhè, na-eduga na nkwekọrịta nke Austro-Hungarian nke 1867 na okike nke njikọ onwe onye n'etiti okpueze nke Alaeze Ukwu Austria na Alaeze Hungary. A doziri esemokwu nke ọnọdụ Croatia site na Croatian-Hungarian Settlement nke 1868, mgbe alaeze nke Croatia na Slavonia jikọtara n'ime Alaeze Croatia-Slavonia. N'ịgbaso mmebi nke Austria-Hungary mgbe e merisịrị ya na Agha Worldwa Mbụ, nzuko omeiwu Croatia kwupụtara nnwere onwe na 29 Ọktọba 1918 wee kpebie isonye na steeti ọhụrụ nke ndị Slovenia, Croats na Serbs, na-akwụsị ọchịchị Habsburg na njikọ onwe onye na Hungary mgbe afọ 816 gasịrị. Site na nkwekọrịta nke Trianon, Hungary tụfuru Medimurje County na akụkụ ndịda nke Baranya na Croatia. Kemgbe Agha Worldwa nke Abụọ, mmekọrịta dị n'etiti steeti abụọ ka akọwapụtara site na imekọ ihe ọnụ na ndị Nazi, ndị Soviet na Yugoslavia ruo mgbanwe nke 1989 na mmebi nke Yugoslavia. Hungary ghọtara nnwere onwe Croatia na ndị ọzọ nke European Economic Community na 1992, ma kwado Croatia n'oge Agha Nnwere Onwe Croatia.