Question: Where was the place of death of Duke Constantine Petrovich Of Oldenburg's father?
Sentence (from "John V, Count of Oldenburg"): John V, Count of Oldenburg and Delmenhorst (also counted as John XIV, including also non-ruling namesake siblings; 1460, Oldenburg – 10 February 1526, Oldenburg) was a member of the House of Oldenburg.
Relevant evidence: No