Hanuman's second son was named Purwaganti, who had only appeared during the Pandavas period. He was credited with discovering Yudhisthira's shed heirloom named Kalimasada. Purwaganti was born into a priest's daughter whom Hanoman married, named Purwati. Hanuman lived so lengthy that he was Sick and tired of dwelling. Narada https://www.youtube.com/watch?v=6cAOQp6Twlc