ORPHEUS, musician, son of Apollo and Calliope, See EURYDICE
OSIRIS, the most beneficent of the Egyptian gods
OSSA, mountain of Thessaly
OSSIAN, Celtic poet of the second or third century
OVID, Latin poet (See Metamorphoses)
OWAIN, knight at King Arthur's court
OZANNA, a knight of Arthur
P
PACTOLUS, river whose sands were changed to gold by Midas
PAEON, a name for both Apollo and Aesculapius, gods of medicine,