Marcos Alonso Peña was a Spanish football player and manager. Known simply as Marcos in his playing days, he played mainly as a right winger but appeared also as a forward.
He amassed La Liga totals of 302 games and 46 goals over the course of 13 seasons, ten of which were spent with Atlético Madrid and Barcelona.
A Spanish international during the 1980s, Marcos represented the nation at Euro 1984, helping it finish second.
Marcos was the father of former Chelsea defender Marcos Alonso.

Marcos Alonso Peña Wife: Who was Marcos Alonso Peña married to?
Marcos Alonso Pena’s wife was Jewish. She was a descendant of a Canary Island Garza family who were executed.
The couple had a son together named, Marcos Alonso.
Currently, there is no information about her name.
source:https://ghanaianexpress.com