Which preposition to use with quadrilateral

of Occurrences 1%

It appealed to his Gallic sentiment, this quadrilateral of stone on the highest point where legend tells that "Jovin, a Christian and very faithful, vanquished the German barbarians 366 A.D." "We have to do as well in our day as Jovin in his," remarked the colonel.

Which preposition to use with  quadrilateral