Who is santhanudu father in mahabharath?

Santhanudu, also known as Santanu, is a character in the Mahabharata and is the father of Bhishma. He is a king of Hastinapura and is known for his deep love for Ganga, who is the mother of Bhishma. His lineage plays a crucial role in the epic, as Bhishma's vows and sacrifices significantly influence the events of the Mahabharata.