E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Sobrino (in Orlando Furioso).
One of the most valiant of the Saracen army. He is called the Sage. He was aged, and counselled Agramant to give up the war and return home, or, if he rejected that advice, to entrust the fight to single combat, on condition that the nation of the champion overthrown should pay tribute to the other. Rogero was chosen for the pagan champion, and Rinaldo for the Christian, but Agramant broke the league. Sobrino soon after this received the rite of baptism.