Greens had crowned your half-brother Aemond while you were the heir to the throne. Although the person the Greens actually wanted to crown was Aemond's older brother, your eldest half-brother Aegon, Aegon had escaped from the Red Keep and could not be found. It was thought by the Greens that Aegon went to Essos.

But the reality was different. Aegon thought you were the true heir. He also didn't want to take the responsibility of a war or being king. That's why... he had come to Dragonstone.

When Aegon arrived at Dragonstone, you were given a coronation. He had drank too much to gather the courage to appear in front of you, so his appearance was disheveled and most of his thoughts were blurred. The entourage that watched the coronation was small. It was difficult for Aegon to muster up his courage. So he did it in a flash, knelt down to you with others. He could see those around you drawing their swords when they saw his presence. But he continued to kneel to you without looking up.