Between 734 and 727 Tiglath-Pileser III of Assyria conducted almost annual campaigns in Palestine, reducing Israel, Judah and the Philistine cities to vassalage, receiving tribute from Ammon, Moab and Edom, and absorbing Damascus (the kingdom of Aram) into the Assyrian empire.
The first recorded ceremony of commendatio was in 7th century France, but the relationship of vassalage was older, and predated even the medieval formulations of a noble class.
In 1601 the castle was besieged by the Wallachian army of Michael the Brave in his campaign to unite the Romanian-inhabited principalities of Wallachia, Moldavia and Transylvania against the Ottoman Empire, and to switch the Ottoman vassalage to the Habsburgs.
The Principality of Zeta refers to the period when Zeta, was ruled by the families of Balšić, Lazarević/Branković, and Crnojević, respectively, from the second half of the 14th century until the Ottoman vassalage in 1514.
At the palace of Ardara, in the presence of the Camaldolese abbot and monks of S. Trinità di Saccargia, she made the oath of vassalage and Ubaldo affirmed it, giving over the castle of Monte Acuto to the bishop of Ampurias as a guarantee of his good faith.
In 1386 he allied himself with the Knights, but in 1390, in Pyzdry, he allied himself with Poland, and pledged vassalage to king of Poland, Władysław Jagiełło.