Edgar Stroulger

Edgar Stroulger (1703-1798) was a wizard, who lived in the 18th century. He was an inventor of magical devices, such as the Sneakoscope.

A portrait of Stroulger was placed on the sixth floor of Hogwarts Castle, guarding a secret passageway. His password was "Surreptitiousness", when Harry Potter used his passageway in 1993.

Etymology
The name "Edgar" is derived from the Old English elements ead "rich", "blessed" and gar "spear". This was the name of a 10th-century English king, who is regarded as a saint. The name did not survive long after the Norman conquest, but it was revived in the 18th century, in part due to a character by this name in Sir Walter Scott's novel The Bride of Lammermoor (1819).

Appearances

 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Chamber of Secrets (video game)
 * Harry Potter and the Prisoner of Azkaban (video game)
 * Pottermore