an Entity references as follows:
Julio Gonzalvo Falcón (11 April 1917, Gelsa, Zaragoza - 20 July 2003), also referred to as Julio Gonzalvo or Gonzalvo I, is a former Spanish footballer. His two younger brothers were also notable footballers. Josep Gonzalvo, known as Gonzalvo II, and Marià Gonzalvo, known as Gonzalvo III, both played for FC Barcelona and Spain.