In Wrath of the Lich King it is item level 226, requires level 80 and is named Scourgeborne Legplates. 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 Scourgeborne Legplates Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Valorous Scourgeborne Legplates suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Similar Items
The 10 items nearest to Valorous Scourgeborne Legplates (item level 35) in item level among Armor > Plate, Legs slot, from item level 32 to 39.
Items Numbered Next to Valorous Scourgeborne Legplates
Blizzard numbers items as they are created, so the named items next to ID 40556 (40550 to 40561) were usually added in the same batch as Valorous Scourgeborne Legplates: the same quest line, zone, vendor or reward set.