United by the common goal of creating the world's best magic school, Rowena Ravenclaw and her good friends Helga Hufflepuff, Godric Gryffindor and Salazar Slytherin built Hogwarts castle together and established Hogwarts School of Witchcraft and Wizardry sometime around 993.

It is a popular historical theory that the location and name of Hogwarts were both chosen by Ravenclaw, who dreamt that a warty hog was leading her to a cliff by the lake. Ravenclaw came up with the ever-changing floor plan.

Ravenclaw selected her students according to intelligence and wisdom. Ravenclaw House therefore values a sharp mind, wisdom, creativity, and cleverness in its members.

At some point, Ravenclaw bore a daughter, Helena, who was taught by Rowena herself at Hogwarts.