E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Palameds of Lombardy
joined the squadron of adventurers with his two brothers, Achilles and Sforza, in the allied Christian army. He was shot by Clorinda with an arrow. (Tasso: Jerusalem Delivered, book iii. c. ii. 4.)
He is a Palamedes. A clever, ingenious person. The allusion is to the son of Nauplios, who invented measures, scales, dice, etc. He also detected that the madness of Ulysses was only assumed.
Sir Palameds. A Saracen knight overcome in single combat by Sir Tristram. Both loved Isolde, the wife of King Mark; and after the lady was given up by the Saracen, Sir Tristram converted him to the Christian faith, and stood his godfather at the font. (Thomas the Rhymer.)