Which preposition to use with ferrand

of Occurrences 2%

There was a cry of rage and grief among those men-at-arms whose ranks Rudolf had that instant left, and many couched their lances to avenge him; but Ferrand of Lorraine, who was present in person, ordered them to make prisoner, but not to harm the successful champion.

at Occurrences 1%

The next morning we continued our journey; and crossing the river Allier at twelve o'clock, arrived at Clermont-Ferrand at 2 p.m., and dined with Col. Wardle.

Which preposition to use with  ferrand