Who is the first Surya banshi king?

The first Surya Banshi king is traditionally considered to be Ikshvaku, who is a significant figure in Hindu mythology. He is often regarded as the founder of the Ikshvaku dynasty, which is associated with the solar lineage (Surya Bansh) and is linked to the epic narratives of the Ramayana, particularly as an ancestor of Lord Rama. The Surya Banshi kings are believed to be descendants of the sun god, Surya.