The following is a list of all mothers seen or mentioned in the British sitcom, Black Books.
“The mother of Bernard Black is probably Irish. Bernard had not seen her for years, so much so...Bernard Black's mother
“Mary Bianco (more commonly refered to as Moo-Ma) is the mother of Manny Bianco and wife of...Mary Bianco
“The grandmother of Fran Katzenjammer was an experienced poker player and was capable of cheating...Fran Katzenjammer's grandmother