Tom's Challenge--the Riddler

When England lay under seige by sea,
and bombs by night rained from the sky,
the food grew scarce and times were grim,
but all was saved by the brain of him.

And great honors to him, his King did pay,
Until it was found that he was gay,
Quick they were with his arrest,
and sentenced him to grow women's breasts,

His life from then was not the same,
Though he tried his best to hide his shame,
But in the end he chose Snow White's plight,
But no kiss would ever bring back his life.

1. Who was he?
2. What did he do for Jolly Old England?
3. What was his fate?