. "Pope Gregory XV (Latin: Gregorius XV; 9 January 1554 \u2013 8 July 1623), born Alessandro Ludovisi, was Pope from 9 February 1621 to his death in 1623."@en . . "Gregory 15"@en . "1623Z"^^ . . . "1554Z"^^ . "Pope" . "1554-01-15Z"^^ . . . "1623-07-08Z"^^ . "1554-01-09Z"^^ .