Rowde and Devizes are in Wiltshire, in the southwest of England, a little east of Bath, and a little north of Stonehenge.
For further information on the Rudman family tree, a good starting point is
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=1625-2009&id=I149
Click here for ancient Rudman family history going back to the 1200s.