Battle of Hastings
From Tardis Wiki, the free Doctor Who reference
The Battle of Hastings was a part of the Norman Conquest of England in 1066. The Monk unsuccessfully tried to prevent the victory of the Normans by sabotaging a Viking raid in the north. (TV: The Time Meddler)
The Eighth Doctor and his companion Mary Shelley met King Harold during the battle. (AUDIO: Mary's Story)
The TARDIS' Helmic regulator was hit and incapacitated by an arrow when the Eleventh Doctor visited the battle. (Webcast: Pond Life: Part 5)