Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Valorous Aegis Gauntlets Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Valorous Aegis Gauntlets suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Valorous Aegis Gauntlets is part of the transmog set Valorous Aegis Plate (Paladin only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 45376 (45371 to 45381) were usually added in the same batch as Valorous Aegis Gauntlets: the same quest line, zone, vendor or reward set.