La Grosse Tour

is the Noble Phantasm of Louis XVII.
A recreation of the tower at the where he was imprisoned. The prisoners kept within are completely isolated from the world both physically and magically, unable to seek help from outside. An unrealistic space where jails, furnished with evenly spaced iron bars, are lined up left and right of the passage. It is as dark as the night of a new moon, and the smell of filth hangs in the air. There are traces of a violent conflict engraved into this place.
Louis XVII transformed his Master's basement into his Noble Phantasm. Upon Louis' death, the prison faded away and returned to being a normal basement.Fate/Requiem Volume 2: Shinjuku the Nostalgic City - Chapter 9
==Development==
La Grosse Tour is the first Noble Phantasm to have its name spelled with the Latin alphabet even in the original Japanese text.
==References==
Category:Unclassified Noble Phantasms
Category:Unknown rank Noble Phantasms
Category:Noble Phantasms
Category:Noble Phantasms introduced in Fate/Requiem
Category:Towers