IIRC, Rosetti was renowned for paintings that depicted three female characters which all looked alike since they were based on the same model who had posed for each one.
Cheaper than hiring three models, I guess.
He used a few favorites quite a bit, the one you may be thinking of is Jane Burden Morris. He also like to use Fanny Cornforth (who was a hooker), and his late wife, who was posthumous subject of his Beata Beatrix. In his personal life he seems to have been a train wreck.