"House Targaryen" is a featurette and part of "Great Houses" section of the Complete Guide to Westeros, a special feature in the Blu-ray of Season 1 of Game of Thrones. It is narrated by Harry Lloyd as Prince Viserys Targaryen.
The Targaryens are blood of the dragon, descended from the nobility of ancient Valyria, a once mighty empire in the east. When the cataclismic Doom laid waste of Valyria and its people, the Targaryens survived - having settled in the island fortress of Dragonstone years before. They remained there for a century, until the rise of Aegon the Conqueror.
Instead of attempting to reclaim the eastern lands of his ancestors, Aegon sailed west for the Seven Kingdoms - his sisters Visenya and Rhaenys at his side. To keep their bloodlines pure, Aegon continued the custom of his Valyrian ancestors and took both of his sisters to wives. Together, they came ashore on the eastern coast of Westeros. Their blazon: a dragon with three heads, representing Aegon and his sister-wives. Their words: "Fire and Blood".
While their host was small when compared to the armies of the Seven Kingdoms, Aegon and his sisters had a secret weapon: the last of the dragons. He conquered every kingdom, save Dorne, which eventually bowed to Targaryen rule a century later. He had the swords of his enemies melted down by the fiery breath of his dragon, Balerion the Black Dread, and forged into the Iron Throne. The capital city of King's Landing was built on the eastern coast, where Aegon and his sisters first came ashore. And Aegon ordered the construction of a royal castle on its highest hill: the Red Keep.
For three hundred years the Targaryen dynasty stood strong, in the face of rebellion, civil war and plague. But the line of dragon kings was broken when my father, Aerys Targaryen, the Second of His Name, was overthrown in rebellion. My father was betrayed and slaughtered by Ser Jaime Lannister, a member of his own Kingsguard. His son and heir, my brother Rhaegar, perished on the field of battle at the hands of Robert Baratheon, who claimed the Iron Throne for himself.
And so today, the only surviving members of the storied Targaryen dynasty are myself, Prince Viserys - rightful King of the Andals and ruler of the Seven Kingdoms - and my sister, Daenerys. We were spirited to the Free Cities of the east by loyalists. Here, wey have lived in exile ever since, dreaming of the day when we will cross the Narrow Sea and take back our father's throne.
- King Aegon I Targaryen, the "Conqueror"
- Balerion, the "Black Dread"
- King Aerys II Targaryen, the "Mad King" (mentioned)
- Ser Jaime Lannister (mentioned)
- Prince Rhaegar Targaryen
- Lord Robert Baratheon
- Old Valyria
- Dragonstone (mentioned)
- Dorne (mentioned)
- King's Landing
- The Trident
- Pentos (not mentioned by name)
- Narrow Sea