In respect to this, why was King George's brother disgraced?
After ruling for less than one year, Edward VIII becomes the first English monarch to voluntarily abdicate the throne. He chose to abdicate after the British government, public, and the Church of England condemned his decision to marry the American divorcée Wallis Warfield Simpson.
One may also ask, what did King George's brother do? King George's Brother Edward Abdicated The Throne & 'The Crown' Will Re-Visit His Daring Choice.
Also to know, why did the king's brother step down?
Edward abdicated (resigned) from the throne, because he wanted to marry the American Wallis Simpson. Simpson had been married twice before. As King, he was Head of the Church of England, and the Church did not support divorce.
Did the Duke of Windsor regret abdicating the throne?
He caused a constitutional crisis when he proposed to American divorcee Wallis Simpson and chose to abdicate on Dec. In fact, there's evidence suggesting that the Duke and Duchess of Windsor and a few friends in the Palace were secretly plotting to claim back the throne.