The earliest known Ringelstetter is Erhard Ringelstetter (Ringlstätter).
Ringelstetter family history can be traced to the year 1654 in Tiefenbach, Kreis Cham, Bavaria, Germany.
It is possible the Ringelstetter family previously came from the Dingolfing area, possibly from a nearby town called Ringstetten (earlier spelled Rinkenstatt). Names of possible sisters of Erhard Ringelstetter were found in the Dingolfing church book . Unfortunately, Erhard's baptism record was not found, due to the church records being burned for the years including 1618.
Erhard Ringelstetter death record
Date: 1 Oktober 1701
Den 1. (8ber) ist christlich begraben worden,
Erhardt Ringstetter alhier, alters 83 Jahr.
[ausgebessert aus 83]
Source: Tiefenbach church book, Band Number 2, Mikrofiche Number 30, page 314, year 1701.