States and territories established in the 840s

historic sovereign kingdom on the British Isles from the 9th century and up to 1707

former kingdom (843–987)

country in Western Europe from 843 to 962; predecessor to the Kingdom of Germany

former country

former country

treaty

Mediaeval duchy in central Italy, circa 575–1201

short-lived Islamic state in Apulia ruled by non-Arabs from ca. 847 until 871

Byzantine province in the northern Aegean Sea

monastery

The Banijurids or Abu Dawudids were a short-lived Iranian dynasty that ruled Tukharistan and parts of the Hindu Kush. They were vassals of the Samanids until their fall in 908.

Teisterbant was a pagus (province) of Lotharingia/Middle Francia. It was located in the present-day Netherlands, bordered by the rivers Lek and Waal. Modern-day West-Betuwe (the southern part of the province of Gelderland) shares most of the same land including towns such as Batenburg, Vianen, Tiel, Culemborg, Geldermalsen. The historic fiefdoms of Altena, Arkel, Buren, Heusden and Vianen were also part of it.

medieval Armenian principality