Marcos has a footballing family with both his father, Marcos Alonso Peña, and his grandfather, Marcos Alonso Imaz, both playing for the two Spanish powerhouses.
Marcos’s father is best known for his time at FC Barcelona were played 124 times for the Catalan giants. His transfer from Atlético Madrid for 150 million pesatas to Barcelona in 1982 made him Spain’s most expensive player. He found the net 6 times in his first league season but the highlight came when his injury time header gave Barça the Copa del Rey over rivals Real Madrid. He finished runner-up with Barcelona in the 1985-86 European Cup final by Steaua Bucharest on penalties.
During his playing career he gained 22 caps playing for Spain… helping them reach the Final at the UEFA Euro 1984 competition. He later went on to manage several clubs in Spain.
Marcos's grandfather also named Marcos was born on 16th April 1933 and was nicknamed Marquitos. Marquitos became a legend at Real Madrid participating in their five European Cup successes in the 1950s, scoring in the 1956 final to pull the game back level 3-3 before eventually going on to beat Stade de Reims 4-3.
During his spell in Spain's capital he amassed six league title medals and represented the national team on two occasions.