Caterina is an amazing character for Victoria 7 for use in Daz Studio 4.8 and up. While she looks best with Victoria 7, her skins were made on Genesis 3 Base UV, so you can use her even if you do not own Victoria 7. However, her morphs will just not look exactly the same.
The head for Caterina is uniquely custom sculpted in Zbrush, and the skin was created using high quality photo references for depth and detail. Her face is soft and feminine and her body is sensual and curvy, allowing for her to be perfect for your creative needs.