Markandeya
Markandeya (Sanskrit: मार्कण्डेय) is an ancient rishi (sage) from the Hindu tradition, born in the clan of Bhrigu Rishi. He is celebrated as a devotee of both Shiva and Vishnu and is mentioned in a number of stories from the Puranas. The Markandeya Purana especially, comprises a dialogue between Markandeya and a sage called Jaimini, and a number of chapters in the Bhagavata Purana are dedicated to his conversations and prayers. He is also mentioned in the Mahabharata. Markandeya is venerated within all mainstream Hindu traditions.
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