Findings:

• The Ballad of Gregorio Cortez
• Gregorio Allegri
• gregorio (user)
• Gregorio Prieto
• Guillermo del Toro
• Guillermo Gómez-Peña
• Guillermo O'Donnell
• Guillermo Cabrera Infante
• Guillermo Stabile
• Guillermo Ugarte
• Guillermo (user)

If you Log in you could create a "Guillermo Gregorio" node. If you don't already have an account, you can register here.