Brothers Grimm

The Brothers Grimm were linguists and, according to Romana, writers of fairy tales. They developed the Law of Consonantal Shift, which stated that language changed over the course of centuries due to how the pronunciation of words changed. The Fourth Doctor brought this up to Romana when discussing how the names of the Hydrax officers had changed to Aukon, Camilla and Zargo. (TV: State of Decay)

Sarah Jane Smith thought of their fairy tales when looking at the Black Forest. She expected to find a werewolf, a witch, Hansel and Gretel, the Little Red Riding Hood, and the Big Bad Wolf. (PROSE: Managra)

Evelyn Smythe compared Sancreda to something out of Grimms' Fairy Tales. (AUDIO: The Spectre of Lanyon Moor)