Nahshon: Son of Amminadab

And Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon, and she bore him Nadab and Abihu, Eleazar and Ithamar.

…from Judah, Nahshon son of Amminadab;

Ram was the father of Amminadab, and Amminadab was the father of Nahshon, a leader of the descendants of Judah.