Sheepbagger ("Kozojed" in the original Polish) is a cobbler from Barefield who took part in the hunt for the legendary golden dragon, Villentretenmerth in the short story "The Bounds of Reason" in the Sword of Destiny collection by Andrzej Sapkowski. It was his idea to poison the dragon who had been stealing sheep.
During the quests Contract: Dragon, Geralt must use a sheep as bait for a forktail. When asking the village elder for the animal, the elder offers to stuff it with sulfur. To which Geralt replies "Ahh, another ally of the brave little shoemaker… No, I'll manage without sulfur. Just need a sheep. Unseasoned."
While Geralt and Triss are inspecting the wreck of the Petra Silie to gather information on the kayran, they stumble upon the remains of "a ram stuffed with sulfur and a dead cobbler — straight out of eastern legends". A direct reference to Kozojed's method of dragon disposal.