Complex sentence: In May 1471 Roger was captured by Jasper Tudor and beheaded at Chepstow, which resulted in further acrimonious feelings for the Tudors by the Vaughans and Herberts; for which Welsh poets urged revenge.
Split into simpler sentences: In May 1471 Roger was captured by Jasper Tudor and beheaded at Chepstow. This act resulted in further acrimonious feelings for the Tudors by the Vaughans and Herberts; for which Welsh poets urged revenge.