He selected March as the name of his earldom for several reasons: Welsh marches referred to several counties, whereby the title signified superiority compared to usual single county-based earldoms.
Ta valis oma krahvkonna nimeks March mitmel põhjusel: Walesi margid osutasid mitmele krahvkonnale, misläbi tähistas tiitel ülimust võrreldes tavaliste krahvkondadega.