On the other hand the pope ceded to the emperor the right of investiture by the sceptre.
By the concordat of Worms, 1122, the emperor surrendered the right of investiture by ring and staff, and granted the right of election to the clergy.
The founder of the Mevlevi dancing dervishes, the poet Mahommed Jelal-ed-Din (Rumi), in 1307, though tempted to assume the inheritance along with the empire of the Seljuk sultan Ala ed-din Kaikobad III., who died without heirs, preferred to pass on the power to Osman, son of Ertogrul, and with his own hands invested Osman and girt him with the sword: this investiture was the legitimate beginning of the Osmanli authority.
The investiture was bestowed upon Duke Henry but upon his second wife, Theodora; in case of a failure of male heirs the duchy was to descend to females; and if the duke had no children he could nominate his successor.
When Henry the Lion, duke of Saxony and Bavaria, was placed under the imperial ban in 1180, Otto's services were rewarded by the investiture of the dukedom of Bavaria at Altenburg.