Conversation so far:
Where and when was Josef born?
16 March 1911 to Karl and Walburga (Hupfauer) Mengele in Gunzburg, Bavaria, Germany.
Did he have any siblings?
the eldest of three children.
What kind of education did he receive as a child?
Mengele did well in school and developed an interest in music, art, and skiing.
Was he ever married?
Mengele married Irene Schonbein.

Question: Did they have any children?
Self-contained rewrite: Did Josef Mengele and Irene Schonbein have any children?