Q. 1. What is the Triclavianism heresy?

A. 1. According to wikipedia.org, "Waldensians, Waldenses, Vallenses or Vaudois are names for a Christian movement which started in Lyon and spread soon to the Cottian Alps in the late 1170s."

"The movement, named after founder Peter Waldo, advocated an adherence to the Gospel that led to conflicts with the Roman Catholic Church. By 1215, the Waldensians were declared heretical and subject to persecution."

"During the Protestant Reformation, Waldensian leaders joined the Reformed church. Thus the movement adopted many of the Calvinist tenets and became a Protestant denomination."

Peter Waldo was a wealthy merchant who decided to give up all his worldly possessions. He began to preach on the streets of Lyon in 1177 A.D.

Triclavianism held the belief that three, rather than four nails were used to crucify Christ and that a Roman soldier pierced him with a spear on the left, rather than right side.

They were condemned by the Papal Bull "Ad Abolendam" of Pope Lucius III, written at Verona in November 1184 A.D.