Sati the first wife is Shiva is the daughter of Daksha Prajapati and Prasuti who is the daughter of Svayambhuva Manu. Sati died after she throw herself into a religious fire after her father didn't invite her and her husband for a religious gathering. After that Shiva took Sati in his arm and started wandering and wandering through the Universe. Until Vishnu could not see it any longer and he cut Sita in pieces with his discus. Everywhere where a piece of Sita fell is a shakti peeth. One of most famous Shakti Peeths of Nepal is Guheswari not far away from the Pasupatinath temple. Sati reincarnated in Parvati who became Shiva's second wife.