Lombardo, Guillén, 1615-1659 (Nombre personal)

La spada e la croce, c1999: t.p. (Guillén Lombardo) front inside flap of book (Guillén Lombardo, b. 1615, d. 1659; real name William Lamport, born in Ireland)

Ronan, Gerard. The Irish Zorro, 2004: t.p. (William Lamport) p. 7 (Guillén de Lampart)

Wikipedia, August 2, 2021 (William Lamport (1611-1659) was an Irish Catholic adventurer, known in Mexico as Don Guillén de Lampart (or Lombardo) y Guzmán. He was tried by the Mexican Inquisition for sedition and executed in 1659. He claimed to be a bastard son of King Philip III of Spain and therefore the half-brother of King Philip IV. William Lamport was born in either 1611 (according to his brother) or 1615 (other sources) in Wexford, Ireland to a family of Catholic merchants) https://en.wikipedia.org/wiki/William_Lamport

Wikidata website, August 2, 2021 (William Lamport; b. 1615 or 1611, Wexford; d. 19 November 1659, Mexico City) https://www.wikidata.org/wiki/Q2639329