9. MI. LICINIUS CRASSUS AGELASTUS, son of No. 7, and grandfather of Crassus the triumvir. He derived his cognomen from having never laughed (Plin. Nat. 7.18), or, as Cicero says, he was not the less entitled to the designation, though Lucilius reports that he laughed once in his life. (Cic. de Fin. 5.30.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890