“…David Simpkin has provided some analysis of the letters of protection granted for the campaign, and has shown that the defeat in 1314 was 'probably not due to an excessive number of inexperienced soldiers serving in that year'. 83 There was, however, a want of experience at the top, notably in the case of Gilbert, earl of Gloucester, a young man of 23. Four major earls, Arundel, Lancaster, Warenne and Warwick, refused to take part in the campaign.…”