Apollyon Pringle was the caretaker at Hogwarts School of Witchcraft and Wizardry during the sixties. He was the caretaker of Hogwarts while Arthur and Molly Weasley were attending, which Molly related to Harry Potter and Bill Weasley in 1995 before the third task of the Triwizard Tournament. Apparently Hogwarts allowed him to use corporal punishment on students, as Mrs. Weasley told Harry that he caned Arthur for being out late. She says that he still has the marks.
"Apollyon" is the Greek name for Abbadon, the spiritual being named as "The Destroyer" in Christian apocalyptic theology.
It could also mean " A Polly (Cracker) on Pringle (s)"
- Harry Potter and the Goblet of Fire (First mentioned)