Battle over Shipbreaker Bay

"Dispatched by his mother to Storm's End to enlist Lord Borros's support, [Prince Lucerys] arrived to find Prince Aemond Targaryen there before him. Aemond was older, stronger and crueler than Lucerys - and he hated Lucerys with a passion, for it was Lucerys who had cost him his eye nine years earlier. Lord Borros denied Aemond his desire for revenge inside his hall - but stated that he had no care whatever for what happened without. So Prince Aemond, upon Vhagar, chased down the fleeing Lucerys and his young dragon Arrax. The prince and his dragon - hampered by the storm raging outside the castle walls - both died within sight of Storm's End, plummeting into the sea."
- The World of Ice and Fire, George R.R. Martin