Since 1996, I have been researching my Polish (and Lithuanian) ancestry in the Lida region of the former Wilno province of Russian Poland—today's western Belarus. Roman Catholic parish metryki of baptisms, marriages and deaths document my family lines back to the 1700s there.
My ancestry includes these family surnames: Prokopowicz, Rus'c', Zubrzycki, Piwowarczyk, Nowogrodzki, and Sobol in Iszczolna, Szczyczyn, Wasiliszki and Zoludek parishes; and Blaszko, Bogdan, Bowszys, Tumielewicz, Doda, Boutrymon, Zuromski and Balcewicz in Radun, Zyrmuny and other nearby parishes. Another Prokopowicz line (paternal) remains to be traced; I suspect its recent origins lie in Ejszyszki parish, or possibly Nacza or a parish further north in today's Lithuania.
Because I am descended from two unrelated Prokopowicz families, I am interested in the Prokopowicz surname in general. For that reason, I research all of the Prokopowicz families of the Lida region. Metryki (Roman Catholic parish registers of baptisms, marriages and deaths) from the 1790s to the 1880s identify Prokopowicz families in Iszczolna, Zoludek, Lack, Nowy Dwo'r, Wasiliszki, Wawiorka (where there is also Prokop and Prokopczyk), Nacza and Ejszyszki.parishes.
If you are descended from one of my ancestral lines, or from one of the Prokopowicz families of the Lida region, I would be very interested in making contact with you. We might be cousins!