Complex sentence: She achieved prominence during the silent film era, after taking several years of her age and changing the spelling of her Russian surname from Baklanova was often billed under her last name only, as Baclanova, similarly to the surname only nomenclature assigned to fellow countrywoman Nazimova.
Split into simpler sentences: She achieved prominence during the silent film era, after taking several years off her age and changing the spelling of her Russian surname from Baklanova. She was often billed under her last name only, as Baclanova, similarly to the surname-only nomenclature of her fellow countrywoman Nazimova.