Milton's wife soon returned to her family, who was seventeen when they married
It seems like there may be a problem with the sentence structure and clarity. Here is a revised version:
Milton's wife soon returned to her family when she was seventeen, which is the age they married.
It seems like there may be a missing piece of information in your question. Could you please provide more details or clarify what you are asking?
The given sentence seems to be a bit unclear and contains some errors in terms of grammar and coherence. However, I will try to interpret it and explain based on what information is provided.
If we assume that "Milton's wife" refers to a person named Milton and his spouse, and "who was seventeen when they married" refers to Milton's wife being seventeen years old when they got married, we can rephrase the sentence for clarity:
"Milton's wife returned to her family soon after they got married. She was seventeen years old at the time."
Now, if you have any specific questions related to this topic, feel free to ask!