Sir. Edward Esterling was one of the thirteen knights who in the time of King Willm Rufus went into Wales for the subdoing of Glanorganshire and for his good service had St.Donates castle and Mannor given him, where Knightly and noble family hath hithtofor continued and bare for their Armes: Paly of Six, Argent and Azure on a bend Gules, three Cinquefoiles Or.