Fire & Blood | The Dying of the Dragons - The Blacks and the Greens (Chapter 13)

The period between 129 and 131, in which the two rival branches of house Targaryen fought for power, is known as The Dance of The Dragons. The moment King Viserys died, Alicent met with the small council to determine how to proceed. The only person who disagreed with their plot to place her son Aegon II (Aegon the Elder), the master of coin, was promptly killed. The conspirators keep the news secret for a week as they make preparations for the coming feud, and then Aegon was crowned in the dragonpit.

When news reached Rhaenyra on Dragonstone, she went into labor and gave birth to a stillborn girl. Afterwards, she assembled her own council. She was woefully outdone in almost every category, but Alicent only had four fighting-age dragons, and Rhaenyra had 12.