Question: Who is the father-in-law of Melusina Von Der Schulenburg, Countess Of Walsingham?
Sentence (from "Melusina von der Schulenburg, Countess of Walsingham"): The couple had no children, but it is said that "family letters" suggest that Melusina may have been the mother, through an intimacy with Charles Calvert, 5th Baron Baltimore, of Benedict Swingate Calvert.
Relevant evidence: No