From BiblePortal Wikipedia

Constantinus [1]

an Italian martyr, was a citizen of Rome, and for the defence of the Gospel being condemned to be burned, was put in a dung-cart; who, thereat rejoicing, said that he was reputed here as excrements of this world, but yet his death was a sweet odor unto God. This occurred at Rome in 1542. See Fox, Acts and Monuments, 4:398.