Scott L. Waugh: Henry of Lancaster, third earl of Lancaster and third earl of Leicester (c. 1280–1345). In: Henry Colin Gray Matthew, Brian Harrison (Hrsg.): Oxford Dictionary of National Biography, from the earliest times to the year 2000 (ODNB). Oxford University Press, Oxford 2004, ISBN 0-19-861411-X; doi:10.1093/ref:odnb/12959 (Lizenz erforderlich), Stand: 2004.