Complex sentence: Several of her ladies-in-waiting were well known Swedish women of the era; among them were "The Three Graces", as Augusta von Fersen, Ulla von Höpken and Lovisa Meijerfelt were called, and the artists Marianne Ehrenström and Charlotta Cedercreutz.
Split into simpler sentences: Several of her ladies-in-waiting were well known Swedish women of the time. Among them were "The Three Graces", as Augusta von Fersen, Ulla von Höpken and Lovisa Meijerfelt were called, and the artists Marianne Ehrenström and Charlotta Cedercreutz.