In 1415 Czech religious reformer John Hus was condemned & burned at the stake for this crime
[DOC] [TLE] ExecutedToday.com  1415: Jan Hus, reformer of religion and ... [PAR] Jul 6, 2011 ... On this date in 1415, Czech theologian Jan Hus was burned at the stake at ... 
Hus might be the most consequential pre-Lutheran Christian religious reformer, 
and ... carful of rival popes to stake out greater national independence.