Herstmonceux Castle

The Domesday Book of 1086 carries the first written evidence of the settlement, recording that one of William the Conqueror's closest supporters granted the tenancy of the manor at Herst to a man named Wilbert. By the end of the twelfth century the family at the manor house held considerable status, and when Idonea de Herst married a Norman nobleman, Ingelram de Monceux, the place began to be called the Herst of the Monceux — the name that settled into Herstmonceux. The manor descended through the Monceux line until 1330, when Maud de Monceux carried it to her husband, Sir John Fiennes.

Sir Roger Fiennes, a descendant of the Monceux family, was appointed Treasurer of the Household of Henry VI and wanted a house fitting the position. Building began in 1441 on the site of the old manor house, and it was the treasurership that let him meet the £3,800 the original castle cost. The material was the remarkable choice: bricks made from local clay, laid by builders brought from Flanders, making Herstmonceux one of the first buildings in England to use brick and one of the oldest significant brick buildings still standing in the country. For all its castle-like scale, it was built for display as much as for defence.

Sir Roger died in 1449 with the work unfinished; his son Sir Richard Fiennes, Lord Dacre, carried it on. Sir Richard had married Joan Dacre, 7th Baroness Dacre.

In 1541 Sir Thomas Fiennes, Lord Dacre, was tried for murder and for robbery of the King's deer after his poaching on a neighbouring estate ended in the death of a gamekeeper. He was convicted and hanged as a commoner, and Henry VIII confiscated the estate, which was restored to the Fiennes family during the reign of one of Henry's children. The profligacy of the 15th Baron Dacre, heir to the Fiennes family, eventually forced a sale: in 1708 Herstmonceux went to George Naylor, a lawyer of Lincoln's Inn in London, for £38,215.

By the 1770s the castle had come to Robert Hare-Naylor, who, at the insistence of his second wife Henrietta Henckell, followed the architect Samuel Wyatt's advice to reduce it to a "picturesque ruin" by demolishing the interior. Thomas Lennard, 17th Baron Dacre, was exercised enough by the plan to have James Lambert of Lewes record the building in 1776. The interior came down in 1776–77, leaving the exterior walls standing; the house begun for a royal treasurer became a landscape feature in the grounds of Herstmonceux Place, and stayed a shell until the twentieth century.

Lieutenant-Colonel Claude Lowther bought the ruin in 1911 and began radical restoration in 1913 to turn it back into a residence. The work followed a design by the architect Walter Godfrey and was completed in 1933 by Sir Paul Latham, who had bought the castle the previous year. The interiors date from that campaign, and the one major change to the plan was the combining of the four internal courtyards into a single large one. Regarded as the apex of Godfrey's achievement, the restoration was described by Nikolaus Pevsner as executed 'exemplarily'.

The Royal Observatory that Charles II founded at Greenwich in 1675 was defeated by its own city: as London spread, observing conditions deteriorated, and the early twentieth century brought plans to move somewhere rural and dark. Herstmonceux was put up for sale by its private owners and bought in 1946 by the Admiralty, which ran the observatory for the British government; the move took a decade and was complete by 1957. New buildings went up in the grounds, most notably the domes of the Equatorial Group and the 100-inch Isaac Newton Telescope, which was shipped out to La Palma in the Canary Islands in the 1970s. The institution was known as the Royal Greenwich Observatory until 1988, when the observatory moved again, to Cambridge.

In 1992 Alfred Bader, an alumnus of Queen's University at Kingston in Canada, learned that the castle stood vacant and offered to buy it for his wife; she declined, joking that there would be too many rooms to clean. He bought it regardless, and in 1993 he and Isabel Bader gave it to Queen's; after intensive renovations the university's International Study Centre opened there in 1994. Renamed the Bader International Study Centre in 2009 and Bader College in 2022, it suspended operations and admissions on 13 November 2023, pending structural remediation, with reopening expected by 2026.