Counties of the United Kingdom in the context of "England–Wales border"

Knight of the shire (Latin: milites comitatus) was the formal title for a member of parliament (MP) representing a county constituency in the British House of Commons, from its origins in the medieval Parliament of England until the Redistribution of Seats Act 1885 ended the practice of each county (or shire) forming a single constituency. The corresponding titles for other MPs were burgess in a borough constituency (or citizen if the borough had city status) and baron for a Cinque Ports constituency. Knights of the shire had more prestige than burgesses, and sitting burgesses often stood for election for the shire in the hope of increasing their standing in Parliament.

The name "knight of the shire" originally implied that the representative had to be a knight, and the writ of election referred to a belted knight until the 19th century; but by the 14th century men who were not knights were commonly elected. An act of Henry VI (23 Hen. 6. c. 14) stipulated that those eligible for election were knights and "such notable esquires and gentlemen as have estates sufficient to be knights, and by no means of the degree of yeoman".

The Duddon is a river of north-west England. It rises at a point 1,289 feet (393 m) above sea level near the Three Shire Stone at the highest point of Wrynose Pass (grid reference NY277028). The river descends to the sea over a course of about 15 miles (24 km) before entering the Irish Sea at the Duddon Sands. In total, from source to the westernmost part of Duddon Sands, its length is 43 kilometres (27 mi). For its entire length the Duddon forms the boundary between the historic counties of Lancashire and Cumberland and since local government re-organisation in 1974 the Duddon has been in the ceremonial county of Cumbria.

The catchment area of the River Duddon includes a substantial part of the south-western Lake District fells, including the eastern slopes of Corney Fell, Ulpha Fell and Harter Fell; the southern slopes of the mountains around the head of Langdale, and the western slopes of Dunnerdale and Seathwaite Fells.

The River Leven (pron. /ˈlɛvən/ LEV-ən) is a short river in the ceremonial county of Cumbria, falling within the historic boundaries of Lancashire. It drains Windermere from its southernmost point and flows for approximately 8 miles (13 km) into the northern reaches of Morecambe Bay. The river and its estuary are the boundary between the Cartmel Peninsula and Furness Peninsula and is part of North Lonsdale, also known as Lancashire North of the Sands.

The upriver limit of tidal flow is close to the village of Haverthwaite. Also at this point is to be found Low Wood Bridge which, until the coming of the railways, was the first bridging point across the river. The Leven is navigable upstream as far as Low Wood, and downstream from Windermere to Newby Bridge.