Her name inspiration is Anguilla, one of the 12 Deadlords from Fire Emblem: Geneaology of the Holy War/Awakening. There is no similarity beyond the fact that they are both undead.
Anguilla is the oldest character on my current account. Sadly, she has fallen to the wayside as the years go on, but she'll always hold a spot in my heart for how long I've had her.