Where did the Pope celebrate his first Mass?

'8th July 1951 in Traunstein, Bavaria, Germany. Streets decorated, people awaiting the two new priests from their city. The first Mass was celebrated at 7 am by newly ordained priest Joseph Ratzinger with the multitude attendance of the young people and the celebration of the youth Communion.

At 9.30 am followed the first Mass of the new priest Georg. Both brothers were lead from the family house through the decorated streets to the main square, where they were received and welcomed by the clergy. In the crowded parish church of saint Oswald the new priest Georg Ratzinger celebrated the Solemn High Mass, while his brother Joseph served as a deacon and their friend Rupert Berger, also newly ordained priest, as a subdeacon. During the celebration the choir sang the Nelson Messe of Haydn. After the celebration the people met in the Sailerkeller for a dinner and then again in the church.'

 The church of Saint Oswald in Traunstein 

The interior decorated for the Lent 

The bust of Pope Benedict XVI in Traunstein