Mulkin Hungary ya kasance lokacin da Stephen I, babban yariman Hungarian ya zama sarki a shekara ta 1000 ko 1001. Ya ƙarfafa ikon tsakiya kuma ya tilasta wa talakawansa su karɓi Kiristanci .Yaƙe-yaƙe, boren arna da kuma rashin nasara da sarakunan Romawa suka yi na faɗaɗa ikonsu a kan Hungary sun yi wa sabuwar masarauta barazana.Matsayinsa ya daidaita a ƙarƙashin Ladislaus I (1077-1095) da Coloman (1095-1116).Bayan rikicin da ya barke a kasar Croatia sakamakon yakin neman zaben da suka yi a shekarar 1102 Masarautar Croatia ta shiga kawance da Masarautar Hungary a shekara ta 1102.Mawadaci a cikin ƙasashen da ba a noma ba kuma a cikin kuɗin azurfa, zinare, da gishiri, masarautar ta zama abin da aka fi so na ci gaba da ƙaura na ƙasashen Jamus, Italiyanci da Faransanci.Kasancewa a mararrabar hanyoyin kasuwanci ta duniya, al'adu da dama sun shafi Hungary.Gine-ginen Romanesque, Gothic da Renaissance, da ayyukan adabi da aka rubuta a cikin Latin sun tabbatar da mafi yawan halayen Roman Katolika na al'adun Masarautar, amma Orthodox, har ma da al'ummomin tsirarun kabilun Kiristanci ma sun wanzu.Yaren Latin shine yaren dokoki, gudanarwa da shari'a, amma "yawancin harshe" ya ba da gudummawa ga rayuwar harsuna da dama, ciki har da yarukan Slavic iri-iri.Galibin kadarori na sarauta da farko ya tabbatar da matsayin sarki na farko, amma kauracewa filayen sarauta ya haifar da bullar wata kungiya mai son kai ta masu karamin karfi.Sun tilasta Andrew II ya ba da Golden Bull na 1222, "ɗaya daga cikin misalan farko na iyakokin tsarin mulki da aka sanya a kan ikon sarkin Turai".Masarautar ta sami babban rauni daga mamayar Mongol na 1241-1242.Bayan haka an zaunar da ƙungiyoyin Cuman da Jassic a tsakiyar tsaunuka kuma masu mulkin mallaka sun zo daga Moravia, Poland da sauran ƙasashe na kusa.