Grievous Gladiator's Scaled Legguards is part of the transmog set Grievous Gladiator's Scaled Armor (Paladin only), which the Appearances collection lists in 2 versions. The other 13 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Grievous Gladiator's Scaled Legguards Fits
Other Items Named Grievous Gladiator's Scaled Legguards
4 other items in the current build are also called Grievous Gladiator's Scaled Legguards. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Grievous Gladiator's Scaled Legguards
Blizzard numbers items as they are created, so the named items next to ID 100370 (100365 to 100375) were usually added in the same batch as Grievous Gladiator's Scaled Legguards: the same quest line, zone, vendor or reward set.