Lutecia

Lutecia was Claymore No. 1 of her generation and is considered to be one of the eight most powerful Claymores of all time. During her lifetime, she was known as "Lutecia the Universal" (万有のルテーシア, Ban'yū no Rutēshia). Currently, nothing else is known about her.

Etymology
"Lutecia" is a transliteration of the Japanese "Rutēshia" (ルテーシア).

"Lutecia" is possibly a variation of lutetia, a word of Gallo-Latin origin for "place near a swamp." Lutetia Parisorum, forerunner of the re-established Merovingian town that is the ancestor of present-day Paris, was the name of a fortified town of the Gaulish tribe of the Parisii, who had a capital there.