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Maharaj Prithu ruled till end of 6th Manvantara i.e. Chakusha Manvantara
He was succeeded by Vaivasvata Manu of Solar dynasty
From Matsya's Purana Chap 8
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Future events of mahayugas
https://www.sacred-texts.com/hin/vp/vp076.htm
Savarni Manvantara
In the period in which Sávarńi shall be the Manu, the classes of the gods will be Sutapas, Amitábhas, and Mukhyas; twenty-one of each. The seven Rishis will be Díptimat, Gálava, Ráma, Kripa, Drauńi; my son Vyása will be the sixth, and the seventh will be ...
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Durga saptshati has multiple mentions of Navdurga.
When Markandeya ji asks for Durga kavach mantra, Brahma ji describes nine form of Durga or Navdurga.
Shailputri / Parvati : fear and sorrow goes away by her darshan. Daughter of Himalaya.
Brahmacharini : who continuously seeks Brahma
Chandraghanta : Moon resides in who's Ghanta
Kushmanda : this warm ...
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This image nicely describes the lineage of Brahma.
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