Unterpetersdorf, together with Haschendorf has been an independent local parish with its own register since 1 January 1939.
with its own register.
Unterpetersdorf was a branch parish of the Horitschon parish until 1969. Before 1969, Unterpetersdorf was a branch of Neckenmarkt. The registers of Unterpetersdorf are therefore entered in the books of the parish of Neckenmarkt from 1653 to 1969 and in the books of the parish of Horitschon from 1969 to 1 January 1939 and from then until the present in Unterpetersdorf.
There are currently no registers available online.