Attalus (At`talus) , the name of three kings of Pergamos: A. I., founded the library of Pergamos and joined the Romans against Philip and the Achæans (241-197 B.C.); A. II., kept up the league with Rome (157-137); A. III., bequeathed his wealth to the Roman people (137-132).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
At`ropos * Atterbury, Francis