Ranni the Witch

Ranni is the daughter of Radagon and Rennala. After Radagon departed and became the consort to Marika, Ranni and her siblings were raised to demigod status, as they were now the children of the consort of a goddess. She appears to have some involvement in The Night of Black Knives, where Black Knife Assassins stole a shard of the Rune of Death and murdered Godwyn, the Golden. At the same time, Ranni seems to have lost her original body and now resides as spirit inhabiting an artificial doll body, seeking to restore her Empyrean status with the aid of blacksmith Iji, preceptor Seluvis, wolf warrior Blaidd, and the Tarnished.

(Source: Elden Ring Wiki)