Conversation so far:
who was the first person to say sleep is the cousin of death
Thomas Sackville said, By him lay heavy Sleep, the cousin of Death in his poem Sleep.
who is thomas sackville
Thomas Sackville, 1st Earl of Dorset was an English statesman, poet, and dramatist.

Question: did sackville have a political career
Self-contained rewrite: did thomas sackville have a political career