"Far fewer [Lollard] suspects admitted to holding to the allied opinion, but distinct article, that prayers should not be made to saints but only to God, a view propounded by Wyclif and present among the heretics of East Anglia in the early fifteenth century." (Robert Lutton, Lollardy And Orthodox Religion In Pre-Reformation England [Suffolk, England: The Boydell Press, 2011], 160-61)
For many other examples of pre-Reformation opposition to praying to saints and angels, see here.
