Ambrosius Blarer ( sometimes Ambrosius Blaurer ; April 4 , 1492 -- December 6 , 1564 ) was an influential reformer in southern Germany and north-eastern Switzerland .
Ambrosius Blaurer ( sometimes Ambrosius Blarer ; April 4 , 1492 -- December 6 , 1564 ) was an influential reformer in southern Switzerland and north-eastern Germany .