The longest-lived of the four indigenous judicates — with Cagliari, Gallura and Torres — that ruled Sardinia after Byzantine authority lapsed; governed from Oristano from 1070, and under Marianus IV and the judge-regent Eleanor it took the whole island but Cagliari and Alghero in its wars with the Crown of Aragon.
Broken at the Battle of Sanluri on 30 June 1409; the last judicial rights were sold to Alfonso V of Aragon for 100,000 gold florins on 14 August 1420, completing the Aragonese Kingdom of Sardinia.
The atlas holds 2 border frames for Judicate of Arborea — the shape you scrub through changes in 1000 · 1353.
The standard English-language reference on medieval Sardinia — the judicates’ origins and institutions, and the Arborean wars with Aragon. Brill; confirmed on Open Library.
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