Apparently "Shropshire did not exist until the tenth century, when Alfred the Great and his successors divided the country into administrative shires (a word derived from the Anglo-Saxon scir, meaning sphere of office).... The first mention of the Anglo-Saxon shire of Scrobbescire or Shropshire is in The Anglo-Saxon Chronicle when, in the year 1006, King Ethelred the Unready, pursued by the Danes, 'passed over the Thames into Scrobbes-byrig-scire'."
From the book Cadfael Country by Rob Talbot and Robin Whiteman.
