Enciclopedia cattolica v. 3, column 743-744 (under Carafa: Carlo Carafa; nephew of Pope Paul IV; b. ca. 1517 in Naples; created cardinal in 1555; executed in Rome on Mar. 4, 1561)
Lexikon für Theologie und Kirche v. 2, column 940 (under Carafa: Carlo, nephew of Pope Paul IV; year of birth 1517 or 1519; date of execution is given as Mar. 5, 1561)
Paolo IV e il processo Carafa, 1993 p. 9 (Carlo Carafa)