Caroline Penvenen was an heiress as the only niece of Ray Penvenen. She was also the wife of Dwight Enys.
She is an orphan taken in by her extremely wealthy uncle Ray. She befriends Demelza Poldark and Ross poldark, continuingly visiting Nampara regularly. While she went behind her uncles back and married her love of Dwight Enys he was taken from her to go to war in France. Her uncle now dead Caroline is a wealthy Heiress, heir to fortunes she does not wish. She wishes to live a simple life with Dwight. Once Ross rescued Dwight from France he has changed he is not having a good connection with Caroline. He is traumatised from the scene he seen in prison, France.