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.
Frederick II, Duke of Swabia Frederick II (1090 – 6 April 1147), called the One-Eyed, was Duke of Swabia from 1105 until his death, the second from the Hohenstaufen dynasty. His younger brother Conrad was elected King of the Romans in 1138.