In Wrath of the Lich King it is item level 226, requires level 80 and is named Redemption Greaves. In MoP Classic it is item level 213 and requires level 80.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Valorous Redemption Greaves Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Valorous Redemption Greaves suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Valorous Redemption Greaves is part of the transmog set Valorous Redemption Plate (Paladin only). The other 16 pieces:
Items Numbered Next to Valorous Redemption Greaves
Blizzard numbers items as they are created, so the named items next to ID 40572 (40567 to 40577) were usually added in the same batch as Valorous Redemption Greaves: the same quest line, zone, vendor or reward set.