Complex sentence: According to Bede, he was converted to Christianity at the court of his overlord Æthelberht of Kent in c.604, but later in his reign was powerful enough to hold "imperium" over several Anglo-Saxon kingdoms.
Split into simpler sentences: According to Bede, he was converted to Christianity at the court of his overlord Æthelberht of Kent in c.604. Later in his reign he was powerful enough to hold "imperium" over several Anglo-Saxon kingdoms.