It is very likely that the village of Koty is derived from the village of Raszyn, or rather New Raszyn. It could be in case of selling the village, or renaming the village.
From Schubert's map of 1826-1840, we can see on the map the village Raszyn (us Raszyn), and its lower part coincides with today's village Koty.
On the military topographical map of the Russian Empire for the years 1846-1863 we can already see New and Old Raszyn. New Raszyn is just our future Koty.
In “Geographical Dictionary of the Kingdom of Poland and Other Slavic Countries. Volume XV, Part 2”, there is a mention of the village of Raszyn near Raszyn in Kobrin district.
On the one-verst map, instead of Nowy Raszyn, Koty is mentioned:
From 1921 to 1939 as part of Poland, the village was called “Koty” in the Ziolow commune, Drohiczyn district, Poleskie voivodeship. There were 13 households and 54 inhabitants. In 1930 there were 24 households. The village is on the Polish WIG map:
From 1939 in the BSSR, from 15.01.1940 in Antopol district, from 12.10.1940 in Detkovichi village council, there were 132 inhabitants. The village is on the map of RKAA:
During the Great Patriotic War 6 inhabitants of the village died, 5 did not return from the front. Since 08.08.1959 it was a part of Drohiczyn district. In 1959 there were 145 inhabitants, in 1970 - 134 inhabitants, in 1995 - 29 yards and 58 inhabitants.