"Li boen citean de Roem,
E la Jovante de Caem,
E de Falaise e d'Argentoen."
—Roman de Rou.
Henry founded a chapel at Argentan to St. Thomas of Canterbury.
"The average size of a diagonal, taken from angle to angle, in an Alençon or so-called Argentan hexagon was about 1⁄6 of an inch, and each side of the hexagon was about 1⁄10 of an inch. An idea of the minuteness of the work can be formed from the fact that a side of a hexagon would be overcast with some nine or ten buttonhole stitches" (A. S. Cole). "So little is the beautiful workmanship of this ground known or understood, that the author has seen priceless flowers of Argentan relentlessly cut out and transferred to bobbin net, 'to get rid of the ugly, old, coarse ground'" (Mrs. Palliser, 1869).