By what nicknames was the elder brother of Matilda of Franconia called ?
Matilda of Franconia:  Matilda’s elder brother was Henry III, Holy Roman Emperor. 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.
the Black or the Pious