Æthelred's second reign was marked by strife with which son of Sweyn Forkbeard?
Harthacnut
Cnut
Svein
Eric
Answer
Cnut, the son of Sweyn Forkbeard, caused strife during Æthelred's second reign. Cnut invaded England in 1015 and forced Æthelred to flee to Normandy. Cnut was crowned king of England in 1016 and ruled until his death in 1035.