By what nicknames was the elder brother of Matilda of Franconia called ?
Henry III, Holy Roman Emperor Henry III (28 October 1016 – 5 October 1056), called the Black or the Pious, was a member of the Salian Dynasty of Holy Roman Emperors. He was the eldest son of Conrad II of Germany and Gisela of Swabia. His father made him Duke of Bavaria (as Henry VI) in 1026, after the death of Duke Henry V.
Louis II, Elector of Brandenburg Louis the Roman (German: "Ludwig VI der Römer" ) (7 May 1328 – 17 May 1365) was the eldest son of Emperor Louis IV the Bavarian by his second wife, Margaret II, Countess of Hainault, and a member of the House of Wittelsbach. Louis was Duke of Bavaria as Louis VI (1347–1365) and Margrave of Brandenburg (1351–1365) as Louis II. As of 1356, he also served as Prince-elector of Brandenburg.