User blog comment:Lelouch Di Britannia/One Piece Chapter 813 - An All-Too-Sudden Parting/@comment-4899461-20160125152750/@comment-2226235-20160125170034

Also, that means she would have to be pretty old since Pudding is old enough to get married, so that means she's probably about 20ish, which means Big Mom would be at least 60 (assuming she gave birth to her first daughter at age 20).