It looks like an extract of a baptismal register entry. It's in Latin, not a Slavic language, but many of the surnames use typically Polish characters (n-acute, L-slash). I've left the given names in their Latin nominative forms, because Polish names are outside my "expertise".
Book of Births
Entry number 155.
Born 8 June, baptised 9 June
midwife Helena Bałyk
baptiser Robertus Kiebzak assistant pastor
Name: Anna, girl, legitimate
Parents: Adalbertus Petrów farmer, son of Mathias [Petrów] and Maria Horwath; Maria, daughter of Stephanus Wyszyński and Catharina Wołoch
Godparents: Antonius Sieńkiewicz farmer, Maria wife of Nicolaus Wołoch farmer