The Regi Lagni are a set of rectilinear and mostly man-made channels covering 1.095 km2 in 99 towns in the
Province of Caserta
The province of Caserta () is a province in the Campania region of Italy. Its capital is the city of Caserta, situated about by road north of Naples. The province has an area of , and a population of 907,442. The Palace of Caserta is located nea ...
,
Province of Avellino
The province of Avellino () is a province in the Campania
Campania is an administrative Regions of Italy, region of Italy located in Southern Italy; most of it is in the south-western portion of the Italian Peninsula (with the Tyrrhenian Sea ...
,
Province of Benevento
The province of Benevento () is a Provinces of Italy, province in the Campania region of Italy. Its capital is the city of Benevento.
Geography
The province has an area of 2,071 km2, and, as of 2017, a population of 279,127. There are 78 '' ...
and the
Metropolitan City of Naples
The Metropolitan City of Naples () is a Metropolitan cities of Italy, metropolitan city in the Campania region of Italy. Its capital is the city of Naples. The province was established on 1 January 2015 and contains 92 ''comuni'' (: ''comune''). ...
. They were built as part of canalisation, land reclamation and flood prevention work on the
Clanio
The Clanio (also: ''Lagno''; ; ) is a river on the Campanian plain, southern Italy, noted in antiquity. It rises in the Apennines near Avella, flows past Acerra and discharges into the Tyrrhenian Sea about south of the Volturno. The Greek origin ...
between 1610 and 1616 by viceroy
Pedro Fernández de Castro
Pedro Fernández de Castro (Algeciras, 1342), nicknamed ''el de la Guerra'' ('of the War'), was a Galician noble and military figure of the House of Castro, descended by illegitimate lines from the kings of Castile- Leon- Galicia. Pedro Ferna ...
during Spanish rule of southern Italy. The work was led by the architect
Domenico Fontana
Domenico Fontana (154328 June 1607) was an Italian"Domenico Fontana." ''