Aerys II Targaryen

House Targaryen 

At the start of Robert's Rebellion, Aerys Targaryen the Second of His Name is the reigning king of the Seven Kingdoms. His reign is marked by increasing paranoia, cruelty, and instability, leading some to call him "the Mad King". Aerys is deeply distrustful of many of the great houses of the realm, particularly those who he believes have ties to his former Hand of the King, Tywin Lannister.

RP-wise, playing as Aerys Targaryen means embodying the persona of a ruler who is increasingly erratic and paranoid, yet still holding onto the power and authority of the Iron Throne. The player must navigate the political intrigue of the Seven Kingdoms, making decisions that could impact the outcome of the war.

Aerys is known for his love of fire and the unpredictable nature of his actions. As the war progresses, he becomes more isolated and reliant on his small council, which can lead to making rash decisions that could turn the tide of the war against the Targaryens. Aerys also has a strained relationship with his son and heir, Rhaegar, who he believes has shirked his duties as a prince by running off with Lyanna Stark.

Overall, playing as Aerys Targaryen at the start of Robert's Rebellion offers a unique opportunity to embody the madness and instability that marked his reign. The player must navigate the complex political landscape of the Seven Kingdoms and make decisions that will impact the outcome of the war, all while dealing with the challenges of a ruler who is increasingly isolated and unpredictable.

https://awoiaf.westeros.org/index.php/Aerys_II_Targaryen