Herman I, Duke of Swabia, was the cousin of the first non-Carolingian king of East Francia, who was called what?
Herman I, Duke of Swabia: Herman I (died 10 December 949) was the first Conradine Duke of Swabia (from 926), the son of Gebhard, Duke of Lorraine, and a cousin of King Conrad I of Germany. Conrad I of Germany: Conrad I (German: "Konrad" ; c. 881 – December 23, 918), called the Younger, was the first non-Carolingian king of East Francia from 911 to 918.
the Younger