The Lollards were a British manifestation of proto-Protestantism. Historians have often been baffled at the lack of 'heretical' activity in the British Isles while there was a long and vibrant tradition in existence on the continent.
There was basically one famous incident regarding some German Cathars who were captured and tried at Oxford during the High Middle Ages. The Cathars were the dualist sect rampant mostly in Southern France and largely exterminated in the 13th century crusade against them. Also known as the Albigensians there was some overlap with the Waldensians with whom they co-existed in the Heresy Belt……the region stretching from the frontiers of the Pyrenees across Languedoc, creeping northward toward the Cevennes, traversing the Cottian Alps and down into the Po valley in Italy…the lands of Savoy, Piedmont, Lombardy, and the Veneto.
There were plenty of other 'pockets'….but this region was notorious. From England other than the 1166 incident, there is silence until the mid-14th century.
How had England escaped the 'poison of heresy' for so long? At this point we encounter the difficulties so often associated with these types of groups. They were not in the mainstream in the sense that they would be leaving a mark on the historical record. Those who tend to be critical of the proto-protestants would argue there were none in England prior to John Wycliffe. But the argument is based on the fact that there are no records of heresy trials and/or Inquisitions. That's not proof. England is somewhat unique in that none of these things really appear until the early 15th century….a generation after Wycliffe's death. So, did it all begin with Wycliffe? Maybe, but maybe not.