Athanasia de Alger Obelia

Athanasia de Alger Obelia is the main protagonist of the manhwa Who Made Me a Princess as well as the first princess and only heir to the Obelian Empire. After reading a book named The Lovely Princess on a shunned princess named Athanasia the protagonist falls asleep with sleeping pills and finds herself in the infant body of Athanasia from the book. Athanasia also known as Athy is the daughter of the emperor Claude de Alger Obelia and Diana a dancer he deflowered after meeting at a royal banquet. Claudes harem previously occupied the Ruby Palace however he massacred them when Diana died giving birth to Athy. Athy makes her goal in her new life to avoid the execution of the previous Athanasia on her 18th birthday. Source: Who Made Me Princess Wikia