Lansingerland is a municipality in the western Netherlands, in the province of South Holland. It was formed on 1 January 2007, by the merger of the municipalities of Berkel en Rodenrijs, Bleiswijk and Bergschenhoek, collectively known as the "B-Triangle". The former municipality of Tempel, abolished in 1855, is also part of Lansingerland.
The name was chosen from a competition and derived from the name Lansingh, the height-of-land between the Delfland and Schieland Water Boards, which runs between the "3B-Triangle" villages. The choice of name is symbolic: the name of the border that formerly divided the area, now unites it. The "h" in Lansingh was dropped to ease spelling.
Lansingerland consists of the following communities:
Topography.
"Dutch Topographic map of the municipality of Lansingerland, June 2015"
Politics.
On 18 September 2007 Ewald van Vliet was installed as the first mayor of Lansingerland. 
The municipal council of Lansingerland consisted of 31 seats now 33. The council was renewed in 2022 and sits for four-year cycles in accordance with Dutch municipal election laws.
References.
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