Complex sentence: At the request of Lord Nelson, Campbell claimed, he went to the Ionian Islands to confirm the inhabitants in their attachment to the English cause, remaining there till the Peace of Amiens in 1802.
Split into simpler sentences: At the request of Lord Nelson, Callander claimed, he went to the Ionian Islands to confirm the inhabitants in their attachment to the English cause. He remained there till the Peace of Amiens in 1802.