Earl": Edward de Courtenay, 3rd/11th Earl of Devon "~ the Blond": Selim II of the Ottoman Empire () "~ Bloodaxe": Eric I of Norway () "~ the Bloodthirsty": Ismail of Morocco () "Bloody ~": Mary I of England "~ the Bloody": Nicholas II of Russia () "~ Bluetooth": Harold I of Denmark () "~ the Bold": Boleslaw II of Poland () Charles of Burgundy () Philip the Bold () Philip III of France () "~ the Boneless": Ivar Ragnarsson () "~ the Bookish" or "~ the Book-Lover": Coloman of Hungary (; more commonly known as Coloman the Learned) "~ the Boulonnais": Afonso III of Portugal () "~ the Brash": Olof of Denmark "~ the Brave": Afonso IV of Portugal () Boleslaw I of Poland (; also known as Boleslaw the Great) Dan II of Wallachia () John III of Moldavia (Romanian: Ioan Vodă cel Viteaz; more commonly known as John the Terrible) Michael of Wallachia, Transylvania and Moldavia () "~ the Brilliant": George V of Georgia () "~ the Broad-shouldered": Haakon II of Norway () "~ Broom-plant": Geoffrey V, Count of Anjou (; also known as Geoffrey the Handsome or Geoffrey the Fair) "~ the Brown": Donnchadh mac Flainn, High King of Ireland () "~ the Bruce": Robert I of Scotland (Medieval Gaelic: ) "~ Builder": David IV of Georgia () Peter III of Portugal () "~ the Builder King": Leopold II of Belgium (, ) "~ Bulgar-Slayer": Basil II, Byzantine Emperor (, ) C "~ Capet": Hugh Capet () "~ the Cabbage": Ivaylo of Bulgaria (, ) "~ the Capacidónio": Peter III of Portugal (; also known as Peter the Builder) "~ the Cardinal-King": Henry, King of Portugal () "~ the Capuched": Sancho II of Portugal (; also known as Sancho the Hooded or Sancho the Pious) "~ the Catholic": Alfonso I of Asturias () Andrew I of Hungary (; more commonly known as Andrew the White) Ferdinand II of Aragon (, ) Isabella I of Castile () Peter II of Aragon (, ) Frederick I, Duke of Austria () "~ the Caulker": Michael V, Byzantine Emperor (, Michaíl Kalaphátis) "~ the Ceremonious": Peter IV of Aragon (, ) "~ the Chaste": Alfonso II of Aragon (; ; ; also known as Alfonso the Troubador) Alfonso II of Asturias () Bolesław V the Chaste () Henry, King of Portugal () "~ the Chief": Kenneth III of Scotland () "~