Armaud Guillaume (nke a na-akpọkwa Arnault Guilhem), Seigneur de Barbazan, (1360 - 1431) bụ onye ndụmọdụ na onye na-elekọta Charles nke asaa nke French ma mesịa bụrụ ọchịagha n'oge Agha ukwuNarị Afọ nke nwetara onwe ya aha nke Irreproachable Knight.
A mụrụ ya na barraban Dessus Hautes-Pyrénées, ọ bụkwa otu n'ime ndị isi Armagnac, onye na-akwado Charles VII, na onye iro nke ndị Burgundians. Ọ gbachitere n'elu na 1420 megide ndị England, bụ ndị jidere ya ma debe ya dị ka onye agba ruo 1430. Mgbe a tọhapụrụ ya, ọ gara n'ihu na-alụ ọgụ megide Burgundy na England, n'ikpeazụ nwụọ n'agha na Agba nke bulgneville na ugwu Vosges dị nso n'obodo nta nke Bulgnévila na Vaudoncourt
N'ihi ozi obi ike ya na France na eze n'ọtụtụ agha ọ sonyere, e liri Barbazan na Saint Denis basicilica n'akụkụ eze n'onwe ya, mgbe emesịrị emume olili ozu nke ụdị a na-echekarị maka ndị eze.