Sentence:  Isaac Nathan's Christian wife served as godmother to his <WSD>outside</WSD> son, born after their Christian marriage. She allowed the boy, but not his mother, to live with her, her husband, and their two children. 
Meaning of the word marked with <WSD> tags:  Not legally married to or related to (e.g. not born in wedlock to), and/or not residing with, a specified other person (parent, child, or partner);  existing between two such people. (out of wedlock), (nonresidential).