1911 Encyclopædia Britannica, Volume 6… (1911)
“ Boleslaus, duke of the Poles, took the title of king, and assumed a threatening attitude; Rudolph III., king of Burgundy or Arles, who had arranged that the emperor Henry II. should succeed him, refused to make a similar arrangement with Conrad; many of the Italians were hoping to obtain a king from France; and some German princes, including Conrad the younger, and the king’s step-son Ernest II., duke of Swabia, showed signs of revolt. ”
