After his alliance with Blackjack Mulligan and Greg Valentine came to an end in 1981, Ric Flair formed a new group with allies with whom he shared past ties.
Arn Anderson came in as a ‘cousin’ of Ole, though he did not have any actual genetic ties to the elder Anderson. When the group was formed, there was no longer any mention of Flair having a familial relationship with the Andersons.
The Night Four WCW Stars Arrived in the WWF
The Horsemen Ran Through WCW at the time
The Four Horsemen reigned supreme