Cardinals of the Holy Roman Church WWW site, Apr. 16, 2007 (Lugo y de Quiroga, S.J., Juan de; b. Nov. 25, 1583, Madrid; d. Aug. 20, 1660, Rome)
Espacio y tiempo en la Escuela de Salamanca, 2004 t.p. (J. de Lugo S.J.) p. 19, etc. (Juan de Lugo)
OCLC, 7-19-2005 (hdg.: Lugo, Juan de, 1583-1660; Lugo, Juan de, Cardenal, 1583-1660; usage: Joannis de Lugo; Ioannis de Lugo)
Wikipedia 17 Oct. 2013 (John de Lugo (also Juan de Lugo y de Quiroga) (1583-1660), a Spanish Jesuit and Cardinal, was an eminent theologian of the Renaissance. he joined the Jesuits in 1603 and rapidly became eminent as a professor of theology. He was appointed a cardinal in 1643. His writings, some never published, cover almost the whole field of moral and dogmatic theology)