The Croatian interlace or Croatian wattle, known as the pleter or troplet in Croatian, is a type of interlace, most characteristic for its three-ribbon pattern. It is one of the most often used patterns of pre-romanesque Croatian art. It is found on and within churches as well as monasteries built in early medieval Kingdom of Croatia between the 9th and beginning of the 12th century. The ornamental strings were sometimes grouped together with animal and herbal figures.
Most representative examples of inscriptions embellished with the interlace include the Baška tablet and the Branimir Inscription. Other notable examples are located near Knin, in Ždrapanj and Žavić by the Bribir settlement, Rižinice near Solin and in Split and Zadar.
Croatia has a civil and military decoration called the Order of the Croatian Interlace.
Examples:
Inscription of duke Branimir
Inscription of king Stephen Držislav
Font from the 11th century (most likely a depiction of Zvonimir)
Croatian interlace bordering the Seal of Armed Chief of General Staff of the Armed Forces of Croatia
Croatian interlace in the upper hoist of the flag of the Independent State of Croatia