Mexican Lucha libre, or professional wrestling, has a long history of being a family tradition with brothers, sons, daughters, grandchildren etc.
[1] The professional wrestling promotion International Wrestling Revolution Group (IWRG; Sometimes referred to as Grupo Internacional Revolución in Spanish) honors the traditions of family in lucha libre as part of their annual shows, including Rebelión de los Juniors, a show which focuses on second or third-generation wrestlers.
Starting in 2012 IWRG has also held shows billed as Guerra de Familias ("War of the Families"), a show featuring a tag team tournament featuring family members teaming up for a one night tournament.
The first Guerra de Familias show was a combined effort of IWRG and Promocciones Wagner and featured a steel cage match format instead of an elimination tournament.
For the 2015 show IWRG was forced to substitute Pirata Morgan Jr. with Canis Lupus at the last minute, they also never officially explained the family relationship between the team of El Hijo de Dos Caras with Súper Nova but it is possible they are related in some way.