Dalemark Quartet

The Dalemark Quartet is a series of four fantasy books by Diana Wynne Jones set in a rustic parallel universe with pre-industrial or even medieval civilization. Dalemark is a region by the sea divided into South Dalemark and North Dalemark, consisting of 15 earldoms :
North Dalemark – 7 earldoms

Hannart
Gardale
Loviath
Aberath
Dropwater
Kinnarth
North Dales

South Dalemark - 8 earldoms

Dermath
Holand
Waywold
Canderack
Andmark
Carrowmark
Fenmark
South Dales

In addition to the 15 earldoms, Dalemark includes the so-called King's Lands, although there has been no king in Dalemark for a long time.
The earls ruling South Dalemark are presented as much more tyrannical and cruel than the North Dalemark earls, who are described as being more liberal and with greater respect for human freedoms. As a result, there is constant tension between the North and the South, which often erupts in open war or rebellion. The Great Uprising was a countrywide revolution which led to the restoration of monarchy with Amil the Great ascending to the throne of united Dalemark. The Great Uprising took place about a year after the main events described in Drowned Ammet, the second book of the Dalemark Quartet.
The Dalemark Quartet titles are listed below in the order of publication, which is different from the order of internal chronology :Cart and Cwidder, 1975 Drowned Ammet, 1977 The Spellcoats, 1979 The Crown of Dalemark, 1993