This holy shrine is placed in the centre of the front rank, just like a Standard Bearer or Musician (see Standards, Musicians & Champions). lf the unit turns, the Reliquae is always moved to the front rank again, just like a Standard Bearer or Musician.
The Grail Reliquae has a 5+ Armour save. In close combat, this save is increased to 4+.
The Grail Reliquae counts as both a Standard Bearer (following all the rules for Standard Bearers, though it can never be dropped or captured), and Musician (following all the rules for Musicians).
While there are rank & file Battle Pilgrims remaining in the unit, each wound caused against the Reliquae will result in one regular rank & file model being removed ( other Battle Pilgrims simply leap in to hold up the Reliquae if one of them falls). Only once all the Battle Pilgrims in the unit are removed does the Reliquae itself start taking wounds.
In addition, the presence of the Grail Reliquae means that the entire unit will be affected by the Blessing of the Lady, if the Bretonnian army prayed at the start of the game. This follows all the normal rules for the Blessing of the Lady.