Question: Who is the father-in-law of Denag?
Sentence (from "Yazdegerd II"): His reign was marked by wars against the Eastern Roman Empire in the west and the Hephthalites in the east, as well as by his efforts and attempts to strengthen royal centralisation in the bureaucracy by imposing Zoroastrianism on the non-Zoroastrians within the country, namely the Christians.
Relevant evidence: No