In 1815 however, following the duchy's dissolution, it was attached to so-called Congress Poland under the Russian Empire.
ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪftiːn haʊˈɛvɚ, fˈɑːloʊɪŋ ðə dˈʌtʃiz dˌɪsəlˈuːʃən, ɪt wʌz ɐtˈætʃt tə sˌoʊkˈɔːld kˈɑːŋɡɹəs pˈoʊlənd ˌʌndɚ ðə ɹˈʌʃən ˈɛmpaɪɚ.