Austrian knot

French General Félix Douay wearing nœuds hongrois on his sleeves, c1870.
kepi (no more in use) of a French commissaire de police, with the cruciform pattern nœud hongrois on the top. 1986

An Austrian knot (or Hungarian knot), alternatively warrior's knot or vitézkötés, is an elaborate design of twisted cord or lace worn as part of a dress uniform, usually on the lower sleeve. It is usually a distinction worn by officers; the major exception is the hussars, in which Austrian knots are worn by all ranks. British cadet under officers wear Austrian knots as part of their rank insignia.