Lacey and its variants were first a baronial surname with Norman-French origins from a place name. The town of Lassy is a commune in the Calvados department in the Basse-Normandie region in northwestern France, named after a Gaulish personal name “Lascius”. Lascius appears to have Latin roots and may be a derivative of “lascivus” which means ‘playful, cheerful, and also unbridled, arrogant, insolent. The name was fairly restricted to English nobility and was also a powerful family name in medieval Ireland. The name first appeared in the Domesday Book, recorded as “de Laci” in 1086. Gautier de Lacy was a Norman nobleman who came to England after the Norman Conquest of England in 1066. He received lands in Herefordshire and Shropshire, and served King William I of England by leading military forces during 1075.