From A Wiki of Ice and Fire
Maegor Targaryen has been the name of several members of House Targaryen:
- King Maegor I Targaryen, also known as Maegor the Cruel
- Prince Maegor Targaryen, son of Prince Aerion Targaryen and Princess Daenora Targaryen
- King Maegor III Targaryen, mentioned briefly in the fifth season of Game of Thrones. The character does not exist in the universe of A Song of Ice and Fire.