Answer:
Earl Harold, Duke William of Normandy, and Edgar Aetheling
Step-by-step explanation:
Edward the Confessor died childless, leaving the big question of who would ascend to the throne after his death.
There were three major contenders for the throne:
1. Earl Harold - Edward's brother-in-law and friend
2. Duke William of Normandy - Edward's first cousin
3. Edgar Aetheling - grandson of Edward the Confessor and thus the direct inheritor of the crown
Hope this helps!