EN
In the article, the naming convention in the parish Unierzyż in Mazovia was presented. The names had been excerpted from four parish registers of Unierzyż from 1670 to 1800. The analyzed material allows to ascertain that in that period of time and in the indicated area the most popular feminine name was Marianna and the masculine one – Jan. Several feminine (Katarzyna, Agnieszka, Zofia and Anna) as well as masculine (Jan, Paweł and Piotr) names, which used to appear with high frequency, were isolated, too. Besides, many unique names referring only to one bearer were noticed as well.