Which preposition to use with brothel

in Occurrences 7%

The boudoir in the palace answered to the brothel in the barracks.

at Occurrences 2%

Even when one of these girls is decoyed from the peaceful dwelling of her parents, and left by her infamous seducer a prey to poverty and prostitution in a brothel at Philadelphia, her whole appearance is neat, and breathes an air of modesty: you see nothing in her dress, language, or behaviour, that could give you any reason to guess at her unfortunate situation; (how unlike her unhappy sisters so circumstanced in England!)

of Occurrences 2%

Companies of Kurds made descents upon them, taking toll of their maidenhood, but, with the Russian line to protect them at their rear, they struggled on out of the cemetery and brothel of their native country, and out of the accursed confines of that hell on earth, the Ottoman Empire, leaving behind them the murdered myriads of their husbands and their sons, their violated wives and daughters.

Which preposition to use with  brothel