Gertie Keddle (fl. 11th century) was a witch who lived on the edge of Queerditch Marsh in the 11th century. A rather uneducated witch by modern standards, Gertie only knew one day of the week - Tuesday. She wrote a diary that chronicled the evolution of the "stupid game" the wizards from across the marsh played, that would later become Quidditch. She thought that the lot who played it, including her friend, Gwenog, were idiots. Gertie also owned a cabbage patch in which a leather ball, presumably the first ever quaffle, landed.