Blenheim Palace 

‘Brown's lake at Blenheim is decidedly superior to his work at Stowe. As in nature, the water is deep in the middle and shallower at the sides. Few pieces of water require to be deeper than ten feet. This will generally deter cattle from wading across and has the advantage of being unfavourable to the growth of most aquatic plants.’ This is a quote from The Claudians: gardens, landscapes, reason and faith: John Claudius Loudon and Claudius Buchanan, Tom Turner (Kindle, 2024).

More about Blenheim Palace

Loudon wrote of Brown that ‘Lord Cobham afterwards procured for him the situation of royal gardener at Hampton Court and Windsor. He was now consulted by the nobility, and among other places at Blenheim. There he threw a dam across the vale, and the first artificial lake in the world was completed in a week. By this he attained the summit of his popularity. The fashion of employing him continued, says G. Mason, not only to 1768, but to the time of his death, many years afterwards.’

See also:

https://www.gardenvisit.com/gardens/blenheim_palace_garden

https://www.gardenvisit.com/blog/lancelot-brown-and-blenheim-palace-garden/