Per Pale means that the Shield is divided vertically with one half blue (Azure) and the other half red (gules).
Lovetot bore “Silver a lion parted athwart of sable and gules.”
The arms of Eustace were: gules, on a chief argent, a label azure.
In heraldic language, there are bars of gules and argent, with three mullets, or stars.
Crest; a dragon's sinister wing, argent, charged with a cross, gules.
Basset of Drayton bore “Gold three piles (or pales) gules with a quarter ermine.”
The arms of the Devonshire Killigrews are gules, three mascles on.
Argent, a pale per pale or, and gules: between two limbs of an oak fructed proper.
His son reverted to the plain shield of vair, or, and gules.
The Chancellor: gules, a saltire argent between four crosslets or.