Complex sentence: Eadric (or Edric) Streona (died 1017) was the Ealdorman of Mercia, Eadric's suffix Streona is thought to mean either "the Grasper" or "the Inquisitive".
Split into simpler sentences: Eadric (or Edric) Streona (d.1017) was the Earl of Mercia. Streona's suffix is loosely translated as meaning "the Grasper" or "the inquisitive".