Astolfo (アストルフォWP, Asutorufo), Class Name Rider of "Black" ("黒"のライダー, "Kuro" no Raidā), is the Rider-class Servant of Celenike Icecolle Yggdmillennia of the Black Faction in the Great Holy Grail War of Fate/Apocrypha. After the death of Celenike, he forms a contract with Sieg.