Who is Stettin Palver from Forward the Foundation and what is their importance?

Stettin Palver is Joramis' grandson, who is nicknamed "Red Cheeks" by Hari Seldon before they meet. He studies psychohistory at Langano University, and also serves as a bodyguard for Hari. Stettin falls in love with Wanda Seldon, Hari's granddaughter.