Peter Waldo enters the record as a Lyon merchant who gave away his wealth and began preaching around 1173; nothing in the surviving medieval sources states when he was born.
What would resolve this A Lyon municipal or ecclesiastical record naming Waldo's family and birth year, independent of the later Waldensian tradition's own accounts of his conversion.
OpenMedieval history, history of the Waldensian movementWikipedia contributors, Peter Waldo (Wikipedia)