Luther affirmed Mary's perpetual virginity. It's a shame that many Protestants now reject it

Which famous theologian wrote the following?

I firmly believe that Mary, according to the words of the Gospel as a pure Virgin, brought forth for us the Son of God, and in childbirth and after childbirth forever remained a pure, intact Virgin.

 No, it’s not from St Louis de Montfort’s True Devotion to Mary. It’s from the writings of Ulrich Zwingli – perhaps the most extreme of the 16^th-century Protestant Reformers.

Zwingli isn’t the only Reformer to have affirmed traditional Christian teaching on Mary’s perpetual virginity. Luther defended the dogma after being excommunicated. Calvin is more difficult to pin down. He mocked the idea that Mary took a vow of virginity as “barbarous tyranny,” but rejected the view that Mary had other children after the birth of Jesus in equally strident terms as “excessive ignorance".