Heiliggeistkirche (Church of the Holy Spirit)

The Church of the Holy Spirit, constructed in 1344-1441, is the biggest regional Gothic church and a famous burial place for 55 Prince Electors. After years of changing religions, it is now a Protestant church.

"During the 30 Year´s War, however, the complete collection became the booty of Heidelberg´s conqueror, commander Tilly. Following orders of the Catholic Prince Elector Maximilian of Bavaria, the library was given to the Pope of Rome. Of the collection which once included more than 5000 books and 3524 manuscripts, only 885 manuscripts were returned to Heidelberg in 1816. During the following centuries, the church frequently changed its religious denomination and was used at different times by Catholics as well as Protestants. Even a partition barrier was erected in 1706 because both denominations wanted to hold service here. For 230 years, the barrier stayed in its place until it was removed in 1936. Today, the Church of the Holy Spirit is a Protestant Church."

http://www.heidelberg-marketing.de/content/tourism/sights/churches_monasteries/church_of_the_holy_spirit/index_eng.html