Cinq-Mars, Henri, Marquis de, a French courtier, a favourite of Louis XIII.; a man of handsome figure and fascinating manners; died on the scaffold for conspiring with his friend De Thou against Richelieu (1620‒1642).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Cinnabar * Cinqué Cento