Bill Green borrowed the bulk of his mother's life savings and lived it up with expensive travel, champagne and several racehorses.
But when his mother asked for her money back, he refused, insisting it had been a gift. And for good measure, he threw his mother out of her house on his estate.
On Monday, a judge at Brighton County Court ordered Green, 46, to pay his mother $184,000 and ordered the equivalent amount of Green's assets to be frozen.
Terry Green, 72, sued her son for $180,000, which she loaned to him to help buy a French chateau and refurbish a house.
She told the court that her son promised to repay her from a business deal with airline boss Richard Branson but that deal fell through and her son came up with only $80,000. When she questioned this, she was evicted from the coach house where she lived on his estate on the Isle of Wight, off the south coast of England.
Mrs. Green, who lives near Ryde on the Isle of Wight, said afterward she was "very pleased that justice has been done.
"I feel my son has been corrected. Although I need the money, it was never the issue for me. Whether a kid is 4 or 40, they should be kept in their place and I have done my bit today."