 Beginning from the seventeenth century there were also suffragans for Belarus.In 1798 Pius VI recognized the ancient See of Brest-Litovsk as suffragan of Vilnius.So also the ancient Diocese of Livonia, suppressed in 1797, had become suffragan to Vilnius, and in 1798 had for its first bishop Adam Kossiafkowski (died 1828) but in 1848 was annexed to the Diocese of Samogitia (in Lithuania proper) or see of Kaunas.