Princess Jaehaera Targaryen was the daughter of King Aegon II Targaryen and Queen Helaena Targaryen, and the twin sister of Prince Jaehaerys, in HBO's House of the Dragon.
She was present in the nursery when the assassins Blood and Cheese killed her twin brother; woken by her mother, she fled and survived, and was afterward passed over in the succession in favor of Prince Aemond. This overview summarizes her on-screen role; see the Timeline and sourced statements for detail.
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