By what nicknames was the elder brother of Matilda of Franconia called ?
Matilda of Franconia Matilda of Franconia (  1027 – 1034) was a daughter of Emperor Conrad II and Gisela of Swabia from the Salian dynasty. Matilda’s elder brother was Henry III, Holy Roman Emperor.
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.