As one of the forty dragonlord families of Valyria, the Targaryens were closer to dragons than other men. Aenar Targaryen brought five dragons with him when he moved from Valyria to Dragonstone, and Aegon I and his sister-wives, Rhaenys and Visenya rode them to battle during the Conquest of the Seven Kingdoms.
The Targaryens housed their dragons in an immense domed structure in King's Landing, the Dragonpit, which was constructed during the reign of Maegor I Targaryen.
Not all dragons which hatched were ridden, however. On the island of Dragonstone, several dragons, both wild and previously ridden, resided at least during the reigns of King Jaehaerys I, Viserys I, and Aegon II Targaryen.
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