غريغوري الثالث
Horse meat is forbidden by some sects of Christianity. In 732 CE, Pope Gregory III instructed Saint Boniface to suppress the pagan practice of eating horses, calling it a "filthy and abominable custom". The Christianisation of Iceland in 1000 CE was achieved only when the Church promised that Icelanders could continue to eat horsemeat; once the Church had consolidated its power, the allowance was discontinued. Horsemeat is still popular in Iceland and is sold and consumed in the same way as beef, lamb and pork.