St Paul’s Church is a Protestant church in Paulsplatz, Frankfurt am Main with important political symbolism in Germany. It is a parish of the Protestant Church in Hesse and Nassau, a United member church of the Evangelical Church in Germany. It is notable for being the seat of the 1848 Frankfurt Parliament, the first publicly and freely-elected German legislative body.

More details: https://en.wikipedia.org/wiki/St._Paul%27s_Church%2C_Frankfurt_am_Main