Upon Edward VIII's accession to the throne, Lord Brownlow became heavily involved in the abdication crisis which followed the new King's intention to marry Simpson.
[1] Returning to England, Brownlow attempted to enlist the support of the King's mother Queen Mary, but she refused to receive him.
[2] Following the abdication, Lord Brownlow attempted to extricate himself from the former King's circle, refusing to attend the Duke of Windsor's marriage ceremony in 1937.
He was briefly involved in national politics when he served as Parliamentary Private Secretary to the Minister of Aircraft Production Lord Beaverbrook from 1940 to 1941.
[5] Lacking the Duchess of Windsor's forgiveness following the abdication of Edward VIII was one thing; following the accession of the new monarch, King George VI, Brownlow read without prior warning in the Court Circular, that he had been replaced as the sovereign's lord-in-waiting.
He died in July 1978, aged 79, and was succeeded in his titles by his second but eldest surviving son, Edward John Peregrine Cust, 7th Baron Brownlow.