"I am the Sleep Princess." ― Margarita's imagined mantra Margarita Blankenheim, formerly Margarita Felix and codenamed Third Sleep Princess, was the Marchioness of Toragay in Elphegort and the wife of Kaspar Blankenheim. Happily entering an arranged engagement, Margarita soon became depressed by her loveless marriage. After befriending Mayrana Blossom, she joined Père Noël. Once she acquired the formula for Gift, Margarita experimented with the poison before enacting a massacre of her hometown with her creation. She was one of Eve Moonlit's incarnations. "Indeed... Everyone, everyone was asleep. From the very beginning." ― Eve Moonlit Following the death of the infant Margarita Felix in EC 593, the Clockworker's Doll was activated and Eve Moonlit assumed the baby's identity. Growing up in the Felix Family's household in Toragay, Margarita never tired or slept, and was examined by her father, Dr. Marx, for a medical cause for her "condition". With no explanation forthcoming, Margarita remained perplexed by her sleepless condition and sometimes tried to sleep in vain. Later on, as part of an alliance between the Felix and Blankenheim families, the young Margarita was brought to the Blankenheim Mansion to live with them; there she met and fell in love with her planned betrothed, Kaspar Blankenheim. During their time there, Kaspar offered her a wooden ring and promised they would get married once they grew up. Later, Margarita returned to the Felix estate and, growing up, helped her father with his work as the local doctor, eventually earning a medical license, herself. Years later, Margarita and Kaspar were engaged after he had become the Marquis of Toragay and were married in June of EC 608, at the local Levin church. During their subsequent honeymoon, Kaspar bought Margarita a bed for her new room in the Blankenheim manor, although once he discovered her sleepless condition he refused to have her in his room while he slept.