Claude de Alger Obelia is the current reigning emperor of the Empire of Obelia, and the father of the main protagonist in the popular manhwa "Who Made Me a Princess". He is a book character in "The Lovely Princess", and kills his oldest blood-related daughter, the original Athanasia de Alger Obelia. Claude has been shown to be ruthless and cruel, yet also warm and affectionate later on in the story. 

In the book "The Lovely Princess", Claude gains the throne by usurping and murdering his older brother, Anastacius de Alger Obelia. His name, Claude, refers to his illegitimacy to become heir, as heirs to the Obelian Empire have names which means "immortal".

The story of Athanasia, forsaken princess of the Obelian Empire, ends with her execution at the hands of her own father—or does it? Her tragic tale is the plot of the novel The Lovely Princess. But now, a modern woman who read the book has just woken up as baby Athanasia herself, filled with her own memories and knowledge of the story she’s stuck in! Determined to survive her doomed fate, infant Athanasia embarks on this new life with a plan: avoid attention and hoard valuables to fund her escape. When her plan goes awry, she suddenly needs to charm her way into the good graces of her father, the beautiful tyrant emperor, so he doesn’t kill her again!
<br><br>
(Source: Seven Seas Entertainment)