The district administered by a prefect (as in France or Japan or the Roman Empire)

The office of prefect

A commandery was a historical administrative division of China that was in use from the Eastern Zhou

Japan is divided into 47 prefectures, which rank immediately below the national government and form the country's first level of jurisdiction and administrative division.

People''s Republic of China prefecture-level subdivision

Prefectures are one of four types of prefecture-level divisions in China, the second-level administrative division in the country.

Korea's provinces have been the primary administrative division of Korea since the mid Goryeo dynasty in the early 11th century, and were preceded by provincial-level divisions dating back to Unified Silla and Balhae during the Northern and Southern States period, in the 7th century.

In France, a prefecture may be: the chef-lieu de département, the commune in which the administration of a department is located; the chef-lieu de région, the commune in which the administration of a region is located; the jurisdiction of a prefecture; the official residence or headquarters of a prefect.

administrative quarter of the 6th arrondissement of Marseille, France

Neighbourhood of Lyon