The date is most likely taken from an Urbarium (land registry) executed between the Society of Jesus and the tenants in that year.

The oldest known written record is the charter by which the Cistercian Order was granted land, dated 1233.

The oldest known evidence of ownership of the land is a memorial stone found at the Meierhof in 1930, dating to the early 4th century.

During the summer and autumn of 1989, Pornóapáti was a popular transit point for refugees fleeing the socialist Central European countries, especially East Germany.

Its location, far from official border crossing stations and surrounded on three sides by Austria made it a practical pedestrian escape route.