Name: Lady Constantine
Other Names: Lady Johanna Constantine
First Appearance: The Sandman (vol. 2) #13 (Feb. 1990): "Men of Good Fortune"
Super? (Has Super Powers/Special Abilities/Technology): Yes
Number of Appearances: 15
Note: ancestor of John Constantine
The character of Lady Johanna Constantine was created by Sandman writer Neil Gaiman as a tribute to his mentor Alan Moore, the writer who created the "John Constantine" character (Hellblazer).
Suggested links for further research about this character and the character's religious affiliation: