Sofia is the youngest daughter of legendary pop singer, Lionel Richie, and her mother is Diana Alexander.
She was born on August 28, 1998 in Los Angeles, California and is the half-sister to entrepreneur and fashionista, Nicole Richie. She made her debut on Nicole's hit TV show Candidly Nicole on VH1, when she was 15 years old.
Richie's modeling career took off in 2014 with her first break in Who What Wear, a feature in ELLE Magazine, cover story for NationAlist Magazine, the face of Mary Grace Swim and teamed up with Teen Vogue and Olay for the #FreshtoSchool online campaign that year. Closing out the year, she inked a deal and signed with L.A. Models and Select Model Management. 
She has become one of the most sought after models in the industry.