Peter's Pence, Denarii Sancti Petri, or "Alms of St Peter" were donations or payments made directly to the Roman Catholic Church in Rome, rather than through local parishes. The practice began under the Saxons in England and spread through Europe. Both before and after the Norman conquest the practice varied by time and place; initially, it was done as a pious contribution, whereas later it was required by various rulers, and collected, more like a tax. Though formally discontinued in England at the time of the Reformation, a post-Reformation payment of uncertain characteristics is seen in some English manors into the 19th century. In 1871, Pope Pius IX formalized the practice of lay members of the church "other persons of good will" providing financial support to the Roman See. Modern "Peter's Pence" are used by the Pope for philanthropy throughout the world.
The term Peter's pence, in its Latin form, first appeared in writing in 1031. However, the payment may not have had a single origin under the Saxons. It was applied by the Normans to Ireland as a 'penny per hearth' annual tax in the later part of the twelfth century under the Papal Bull Laudabiliter. The traditional scholarly view is summarized in Jacob's Law Dictionary Otherwise called by Saxons the Romefeoh (the fee due to Rome), it was a tribute, or rather an alms, given by Ina, King of the West Saxons, on his pilgrimage to Rome in 725. A similar "contribution" was also collected by Offa, King of the Mercians, throughout his dominions, in 794. However, it was said to be not a tribute to the pope, but for the maintenance of the English School or College at Rome. It was called Peter's pence because a penny from every house (subject to a means test) was collected on 1 August, the feast day of St. Peter ad Vincula. King Edgar’s laws contained a sharp Constitution touching this money (Leg. Edg 78 c 4)