Three entries with the name Olimpia.
Olimpia
An infidel queen who loved Perceval’s half-brother Feirefiz. Feirefiz rejected her, along with several others, in favor of the Grail Maiden, Repanse de Schoye.
Olimpia
Arthur’s sister whom married King Linefles of France and had a son named Meleranz.
Source
Meleranz | Der Pleier, 1240-1270
Olimpia
The daughter of Meleranz and Tydomie, named after her grandmother.
Source
Meleranz | Der Pleier, 1240-1270