Palamēdes
（Παλαμήδης).
1.
The son of Nauplius and brother of Oeax, a hero of the post-Homeric cycle of Trojan legend. Odysseus envied his wisdom and ingenuity, and was bent on avenging himself on Palamedes for detecting his feigned madness. Accordingly he is said to have conspired with Diomedes and drowned him while engaged in fishing; or (according to another account) they persuaded him to enter a well, in which treasure was said to be concealed, and then overwhelmed him with stones. According to others, Agamemnon also hated him as head of the peace party among the Greeks. He accordingly got Odysseus and Diomedes to conceal in his tent a letter purporting to be written by Priam, as well as some money, and then accuse him as a traitor; whereupon he was stoned to death by the people. His brother Oeax informed his father of the sad event by writing the news on an oar and throwing it into the sea, upon which he took a terrible vengeance on the returning Greeks. (See Nauplius.) Palamedes was considered by the Greeks as the inventor of the alphabet and of lighthouses; also of measures and weights, and of dice and draughts and the discus.
2.
A Greek grammarian mentioned by Athenaeus, who makes him one of the speakers in his book.