What is "ouilly"

Ouilly is an element in several place-names in Calvados, Lower Normandy, France:

• Ouilly-le-Vicomte
• Ouilly-le-Tesson
• Ouilly-du-Houley
• Pont-d'Ouilly

d'Ouilly is the origin of the English surnames d'Oyly and Doiley:

• The D'Oyly baronets, a number of British baronetcies.
• Robert d'Ouilly, a reputed companion of William the Conqueror, ancestor of the D'Oyly Baronets
• Richard D'Oyly Carte, Victorian theatrical impresario

This surname is further given to:

• D'Oyly Carte Island, an island in the River Thames, England.
• The doily, an ornamental table mat supposedly invented by a Mr Doiley