"I wasn't always like this. However, I'm more powerful than your king could ever be." ~Ganondorf
Ganondorf is the main antagonist of The Legend of Zelda series. He was once an honorable and kind man, and was the man who helped raise Link into the great warrior he became. Ganondorf was King Rhoam Bosphoramus Hyrule's Hand of The King for most of his life.
One day, while on an expedition to an ancient ruin, Ganondorf's entire party was wiped out in a terrible accident. After stumbling upon an ancient and mysterious artifact, Ganondorf was corrupted with a power hungry thirst - to get the Triforce and achieve god status.
For Link's protection, his memories were altered so that he believed he grew up in Kokiri forest - which he did, for five more years of his life.