Polo Baggins
From Tolkien Gateway
Polo Baggins was the second child, and only son, of Ponto Baggins and Mimosa Bunce. In his turn, Polo also had a son and a daughter, and through them he founded a populous branch of the Baggins family (though none of his descendants played a significant part in the tales of the War of the Ring). Most of these descendants came through his son Posco Baggins, while his daughter Prisca married into the Bolger family.