E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Baldwin.
The youngest and comeliest of Charlemagnes paladins; and the nephew of Sir Roland.
1
Baldwin (in Jerusalem Delivered). The restless and ambitious Duke of Bologna, leader of 1,200 horse in the allied Christian army. He was Godfreys brother; not so tall, but very like him.
2
Baldwin, the Ass (in the tale of Reynard the Fox). In the third part of the Beast-epic he is called Dr. Baldwin. (Old German, bold friend.)