Today the word graffiti has many unpleasant associations. However, this simply wasn’t the case in the past. Many of the inscriptions found within Troston church were created by some of the most important local individuals, including the lord of the manor and the parish priest.
One example of this graffiti is the Troston Devil:
More information about the Troston graffiti is available in a downloadable PDF. Matthew Champion has produced a detailed article that can be downloaded - "The Graffiti Inscriptions of St Mary's Church, Troston".
For more information about medieval graffiti in general you can visit the Norfolk Medieval Graffiti Survey site.