Rubuta ci gaba don wannan sakin layi - Wannan ya haifar da lokacin mafi haɗari na aikin Ferdinand, a cikin 1529, lokacin da Suleiman ya yi amfani da wannan tallafin na Hungary don babban hari amma a ƙarshe bai yi nasara ba a babban birnin Ferdinand: Siege na Vienna
, wanda ya tura Ferdinand zuwa mafaka a Bohemia. An sake dawo da mamayewar Ottoman a 1532 (duba Siege of Güns). A waccan shekarar Ferdinand ya yi zaman lafiya da Ottomans, ya raba Hungary zuwa sashen Habsburg a yamma da yankin John Zápolya a gabas, na biyun ya kasance mai mulkin daular Ottoman.