At the opening feast, the queen wore a green gown, whilst the princess dressed dramatically in Targaryen red and black.
As Martin writes, 'In 111 AC, a great tourney was held at King's Landing on the fifth anniversary of the king's marriage to Queen Alicent. The court then divides itself into those who support Rhaenyra's claim and those who support that of Alicent and her sons. But soon after, he remarries Alicent Hightower, and Alicent gives birth to sons, including Aegon, her eldest child. The main question becomes: Who will succeed Viserys? Will it be his brother, Prince Daemon? His daughter, Princess Rhaenyra? After Viserys's first wife, Aemma, dies, he names Rhaenyra his heir. ( Here's a family tree of all the Targaryens.) But, most relevant for House of the Dragon viewers are the chapters that start with 'Heirs of the Dragon,' which focus on what happens following the reign of King Jaehaeyrs I Targaryen when King Viserys I takes the throne. The book is a history of the Targaryen family, starting with Aegon the Conqueror.