Which preposition to use with valona

from Occurrences 1%

Yet I heard in the summer of 1913 at Valona from the lips of Ismail Kemal Bey, the head of the provisional government, a most impressive statement of his hopes and aspirations for an independent Albania and his faith and confidence in its future, in which he claimed to voice the sentiments of the Albanian people.

Which preposition to use with  valona