Leonora appears in the original Final Fantasy IV, but she is unnamed. She appears in the ending as a little girl in Mysidia, listening to Palom brag to her about his adventures until Porom arrives to take him to the Elder.
Contributed by Cavery210
After defeating Gilgamesh, his dying word before disappearing is "...Bartz..." This confuses the party, who wonder who Bartz is. This is a reference to Bartz Klauser from Final Fantasy V.
Contributed by Outofmind23