Yakra

Yakra is a monster found in 600 A.D. in Chrono Trigger. He is the "boss" enemy the player must defeat to rescue Queen Leene in the Cathedral.

The Queen is Gone
Yakra kidnapped Queen Leene and impersonated the Chancellor. While on a mission to rescue the Queen, Crono, Lucca and Frog catch up with Yakra at the Cathedral. Yakra eventually is defeated.