In the early fourteenth century, the Papacy managed to minimise the problem of clerical pluralism, by which clerics held two or more livings, which elsewhere resulted in parish churches being without priests, or served by poorly trained and paid vicars and clerks. However, the number of poor clerical livings and a general shortage of clergy in Scotland, particularly after the Black Death, meant that in the fifteenth century the problem intensified. As a result, parish clergy were largely drawn from the lower ranks of the profession, leading to frequent complaints about their standards of education or abilities. Although there is little clear evidence that standards were declining, this was expressed as one of the major grievances of the Reformation. Heresy, in the form of Lollardry, began to reach Scotland from England and Bohemia in the early fifteenth century. Lollards were followers of John Wycliffe (c. 1330 –84) and later Jan Hus (c. 1369 –1415), who called for reform of the Church and rejected its doctrine on the Eucharist. Despite evidence of the burning of heretics and some popular support for its anti-sacramental elements, it probably remained a small movement.