Results

1. Prospography Content: Thomas Percy, earl of Worcester (d. 1403) (person)

arl of Worcester (d. 1403) Thomas Percy (c. 1343 - 1403), earl of Worcester; younger son of Henry Percy, third Lord Percy, and Mary, daugher of Henry of Lancaster. A. L.

2. Prospography Content: Henry Percy, first earl of Northumberland (d. 1408) (person)

nd (d. 1408) Henry Percy (1341 - 1408), first earl of Northumberland; elder son of Henry Percy, third Lord Percy of Alnwick, and his first wife Mary, daughter of Henry of Lancaster.

3. Prospography Content: Henry Percy, third Lord Percy (d. 1368) (person)

Henry Percy, third Lord Percy (d. 1368) J. M. W. Bean, ‘Percy, Henry, third Lord Percy (c. 1321–1368)’, in Oxford dictionary of national biography, ed. by H. C. G. Matthew and Brian Harrison (Oxford: Oxford University Press, 2004), pp. http://www.oxforddnb.com/view/article/21930