Mordred appears in Philip Reeve's Here Lies Arthur, as Medrawt.

Entity and relation annotations:
id: 0
type: entity
value: text: Mordred
labels: <Person>
id: 1
type: entity
value: text: Philip Reeve
labels: <Person>
id: 2
type: entity
value: text: Here Lies Arthur
labels: <Work_of_art>
id: 3
type: entity
value: text: Medrawt
labels: <Person>
type: relation
to_id: 3
labels: Person:coreference:Person
from_id: 0
type: relation
to_id: 2
labels: Person:performs:Work_of_art
from_id: 0
type: relation
to_id: 2
labels: Person:is_character_in:Work_of_art
from_id: 3
type: relation
to_id: 2
labels: Person:creates:Work_of_art
from_id: 1