Complex sentence: In January 1941, Halifax was sent to Washington, D.C., on the death in office there of Ambassador Marquess of Lothian; he was the last man linked with appeasement to leave the Cabinet, as Chamberlain had died and Hoare and Simon had already departed.
Split into simpler sentences: In January 1941, Halifax was sent to Washington, D.C. on the death of Ambassador Marquess of Lothian. He was the last man linked with appeasement to leave the Cabinet, as Chamberlain had died, and both Hoare and Simon had already departed.