In Persona 3 and Persona 4, the mask worn by Priestess Shadows erroneously have "III" written on them which would be the Empress rather than Priestess.
The women in the pots were designed with their hair hiding their eyes to resemble characters from Japanese horror.[1]
Nomenclature
Names in Other Languages
Language
Name
Meaning
Japanese
壺Tsuba
Pot, jar
Notes
References
↑"Chapter 5: Setting", Persona Club P4, Atlus. Published by Famitsu (2009). Japanese. p. 191. ISBN-13: 475774630X.