Key Facts
- Duration
- c. 11th century – 1259
- Administrative divisions
- 20 curatoriae, each ruled by a curator
- Capital
- Porto Torres
- Location on island
- Northwest Sardinia
- Status among iudicati
- Largest of the four Sardinian kingdoms
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
The Judicate of Logudoro emerged as Sardinia fragmented into four autonomous iudicati following the decline of Byzantine authority on the island, likely by the early 11th century. Occupying the northwest of Sardinia, it was the largest of the four kingdoms and developed an administrative system of twenty curatoriae overseen by curatores, with Porto Torres serving as its original capital.
Phase II: Zenith
At its height, Logudoro controlled a substantial portion of northwestern Sardinia, bordered by Gallura, Arborea, and Cagliari. The iudicati system allowed local rulers, the giudici, to govern with considerable autonomy, maintaining Sardinian legal customs and engaging in trade and diplomatic relations with Italian maritime republics such as Genoa and Pisa, which grew increasingly influential in the region.
Phase III: Decline
Logudoro declined through the 13th century as Genoese and Pisan commercial and political pressures intensified. Internal succession disputes weakened central authority, and by 1259 the judicate had been absorbed by foreign powers, making it the second iudicato to lose its independence. Its territory was eventually incorporated into the broader contest for Sardinia that culminated in Aragonese rule in the 14th century.