Ars moriendi "The book of the craft of dying", 1917.
A little book of eternal wisdom, c2010 t.p. (Henry Suso) cover (Henry Seuse)
LC data base, 6-20-85 (hdg.: Suso, Heinrich, 1300?-1366; usage: Heinrich Seuse; Henry Suso)
New Cath. encyc., 2003 (Henry Suso, Bl., b. 21 Mar. ca. 1295, d. 25 Jan. 1366: Süse, Latinized Suso, modern German Seuse)
Gillen, O. Der Mystiker vom Bodensee, c1984 t.p. (Heinrich Seuses) p. 7 (German mystic; b. Mar. 21, 1295; d. Jan. 1, 1366; Dominican monk)
Lexikon für Theologie und Kirche, 3rd ed. (Heinrich Seuse; also Suso; birth date given as Mar. 21 in some year between 1293 and 1303; d. Jan. 25, 1366)
Horologium sapientie, 24 Jan. 1492/93 p. 3 (... beato He[n]rico Siso viro sanctissimo Ordinis Sacri Predicatorum) p. 115 (... beato Henricho Syso Ordinis Predicatoru[m])