Fate/Apocrypha  

In fate/apocrypha, the setting is different from fate/stay night because the greater grail was taken away from fuyuki and vanished for many years. then, around 2000s, yggdmillennia, who stole the grail, announced their separation from the mages association and claimed to have it. the association sent fifty magi to get it back but all except one were killed by lancer of black. this remaining man managed to activate the reserve system of the greater grail, allowing for fourteen servants' summoning. this marked the start of the great holy grail war in trifas between two factions: the black faction, consisting of yggdmillennia members, and the red faction, made up of mages association members except one from the church. additionally, ruler was summoned by the grail to serve as a mediator during the holy grail war.