Robert's Rebellion - 282AC

Rhaegar Targaryen abducts Lyanna Stark. Lyanna's brother Brandon and father Rickard demand that Aerys discipline his son, but instead the Mad King kills them both. Aerys demands the heads of Robert Baratheon and Eddard Stark from their guardian, Jon Arryn. Instead, Houses Arryn, Stark, and Baratheon raise the standard of rebellion. Robert claims the throne through his descent from his great-grandfather, Aegon V and thus Robert's Rebellion, also called the War of the Usurper, begins. Hoster Tully agrees to join the rebellion as well. The Tyrells remain loyal to the king and besiege Robert's castle of Storm's End, held by his brother Stannis.