His last words were:

“Tomorrow, I shall no longer be here.”

Brief bio:
Nostradamus was a cryptic prophet whose verse has been credited by some as foretelling future events despite its vague language and lack of any chronological reference. His predictions achieved local recognition after he claimed to have discovered a cure for the plague. Word of one of his prophesies eventually reached Catherine de Medici, the superstitious wife of Henry II, who believed it was about her husband: “The young lion will surpass the old one in national field by a single duel. He will pierce his eyes in a golden cage two blows at once, to die a grievous death.” After Henry was killed in 1559 during a tournament when a lance, yielded by a younger opponent, pierced his eye, Nostradamus achieved true fame.
One evening, in 1566, Nostradamus’s assistant found him writing at his bench and bid him good night saying “Tomorrow, master?” After Nostradamus replied, the assistant left the room. When he returned the next day, he found Nostradamus dead and a note on the desk: “Upon the return of the Embassy, the King’s gift put in place, Nothing more will be done. He will have gone to God’s nearest relatives, friends, blood brothers, Found quite dead near bed and bench.” –From Last Words