Balerion, called the Black Dread, was ridden by Aegon the Conqueror.
Meraxes was ridden by Rhaenys Targaryen during the War of Conquest.
Vhagar was ridden by Visenya Targaryen in the War of Conquest and by Aemond Targaryen during the Dance of the Dragons.
Silverwing was the dragon of Queen Alysanne Targaryen when she visited the Wall.
Syrax was the dragon Rhaenyra Targaryen rode during the Dance of the Dragons.
Drogon, Rhaegal and Viserion are the dragons born on the Dothraki Sea, commanded by Daenerys Targaryen.