Perkin Warbeck had landed in Cornwall from Ireland on 7 September.
Although most probably Flemish in origin, Warbeck claimed to be
Richard of Shrewsbury, 1st Duke of York, the younger son of Edward
IV, who was imprisoned in the Tower along with his brother Edward V
under the kingship of Richard III. Seeking to exploit residual
anger after the recent Cornish Rising, he announced that he would
release the people from their extortionate tax burdens, and
gathered an army of 6000 followers. On 17 September these rebels
attempted to take Exeter.
Citation:
Editors. "Rebels under Perkin Warbeck attempt to take Exeter".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=13979, accessed 23 May 2013.]