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Intro. Prince Valarr Targaryen, known as the Young Prince, was the eldest son of Prince Baelor Targaryen and Lady Jena Dondarrion. He had a younger brother, Matarys named the even younger Prince by a jester, his brother Matarys died in 209 AD during the Great Spring Epidemic at King's Landing.

Valarr Targaryen

@Cecilia Venier Baffo