Ramba uchiverenga ndima ino - Muna 1038, Harald akabatana nevaByzantine pakuenda kwavo kuSicily, mukuedza kwaGeorge Maniakes (iyo sagas "Gyrge") kutorazve chitsuwa ichi kubva kuvaMuslim maSaracen, avo vakanga vagadzira Emirate yeSicily pachitsuwa ichi. Munguva yokurwisa kwacho, Harald akarwa pamwe chete nevaNorman vaibhadhara mari vakadai saWilliam Iron Arm. Maererano naSnorri Sturluson, Harald akatora maguta mana muSicily. Muna 1041, apo nhimbe yeByzantium yokuSicily yakanga yapera, kumukira kwevaLombard nevaNorman kwakatanga kumaodzanyemba kweItaly, uye Harald akatungamirira Varangian Guard muhondo dzakawanda. Harald akarwa naCatepan weItaly, Michael Dokeianos nekubudirira kwekutanga, asi maNorman, akatungamirwa neyaimbova mubatsiri wavo William Iron Arm, vakakunda maByzantine muhondo yeOlivento munaKurume, uye muhondo yeMontemaggiore muna Chivabvu. Pashure pokukundwa, Harald neVarangian Guard vakadanwa kudzokera kuConstantinople, zvichitevera kuiswa mujeri kwaManiakes namambo uye kutanga kwezvimwe zvinetso zvikuru. Harald nevaVarangian vakazotumirwa kunorwa kumaodzanyemba kwakadziva kumabvazuva kwemuganhu weEurope kuBulgaria, kwavakasvika mukupera kwa1041. Ikoko, akarwa muuto raMambo Michael IV muHondo yeOstrovo yemushandirapamwe wa1041 mukurwisa kumukira kweBulgaria
rakatungamirirwa naPeter Delyan, iro gare gare rakawana Harald zita remadunhurirwa rokuti "Bulgar-burner" ("Bolgara brennir") nokuda kwe skald yake.