The game's full title Pari wa moette iru ka? ("Is Paris burning?") is a phrase said by the German Nazi dictator Adolf Hitler to his subordinate, asking whether Paris has been burnt down, as he ordered.
The seiyuu for Grand-Ma, Keiko Aizawa, is also the Japanese voice for Agent Dana Scully in the Japanese dub of "The X-Files".
Kikuko Inoue, the seiyuu who voiced Lobelia in Sakura Taisen 3, says that in a past life, she was once a fish. Whatever that has to do with the game is beyond me, but it's just a silly little thought. ^_^