What is the name of this Argentine aviator of Italian, English, and Irish descent, who was the grandmother of Luciana Pedraza?
Luciana Pedraza Luciana Pedraza (] ) is an Argentine actress and director. She is married to American fellow actor Robert Duvall, and is the granddaughter of Argentine aviation pioneer Susana Ferrari Billinghurst.
Urs Pedraita Urs Pedraita is a Swiss motorcycle pilot, adventurer and known for his long distance records.