Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Conqueror's Aegis Faceguard Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Conqueror's Aegis Faceguard suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Conqueror's Aegis Faceguard is part of the transmog set Conqueror's Aegis Plate (Paladin only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Conqueror's Aegis Faceguard Fits
Other Items Named Conqueror's Aegis Faceguard
1 other item in the current build is also called Conqueror's Aegis Faceguard. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Conqueror's Aegis Faceguard
Blizzard numbers items as they are created, so the named items next to ID 156420 (156415 to 156422) were usually added in the same batch as Conqueror's Aegis Faceguard: the same quest line, zone, vendor or reward set.