Baron Selwyn-Lloyd, 73, a former British foreign secretary, chancellor of the exchequer and speaker of the House in Commons, died Wednesday night at his home in Oxfordshire, England.

The cause of death was not disclosed. He had undergone brain surgery in March.

Lord Selwyn-Lloyd, who was elevated to the peerage by Queen Elizabeth II in 1976, served as the Conservative foreign secretary from 1955 to 1960. He held the post during the illstarred British-French invasion of Egypt during the Suez Crisis of 1956, following nationalization of the Suez Canal by the late Egyptian President Gamal Abdul Nasser.

The [WORD ILLEGIBLE] might be forced to leave the government. But he remained, serving as a lightning rod for the continuing criticism of the benture.

Harold Macmillan succeeded Eden as prime minister in the aftermath of Suez. In 1960, he made Lloyd chancellor of the exchequer, a post equivalent to secretary of the Treasury in the United States. Macmillan himself had served as chancellor under Eden.

Lord Selwyn-Lloyd thus held two of the highest offices of the British state under men who themselves had held them. That he held them so long illustrates a quaity frequently attributed to him - resilience.

He was more a participant in great events that a shaper of them. He held high office in the Conservative Party and in British cabinets during times of acute stress. Essentially, however, he remained an administrator rather than a charismatic leader.

In 1971, he was elected to the highly respected and nonpartisan post of speaker of the House of Commons. He held that position until his retirment in 1976.

John Selwyn Brooke Lloyd was born in Liverpool on July 28, 1904. His father was a doctor. He went to a boarding school in Scotland and then took an honors degree in history and the classics at Magdalene College at Cambridge University.

His considerable skills as a debater were clear during his undergraduate days. He was president of the Cambridge Union. He later studied law and had a successful practice by the time World War II broke out in 1939.

During the war, he rose from lieutenant to brigadier, and as a staff officer, helped pland the invasion of Normandy. He landed there on D-Day in June 1944.

He was elected to Parliament in 1945, and remained in the House of Commons until he was made a peer.

In 1951, Lord Selwyn-Lloyd married Elizabeth Marshall. They had a daughter, Johanna. The marriage ended in divore.