The remains of a massive Roman villa dating back to 99 AD have been uncovered in Oxfordshire, the second largest Roman villa ever discovered in England.

As part of a four-month excavation project, archeologists excavated the remains of the historic building, which is believed to be larger than the Taj Mahal mausoleum.

The foundation measures 278 feet by 278 feet. The findings so far include coins and boar tusks alongside a sarcophagus that contains the skeletal remains of an unnamed woman.

“Amateur detectorist and historian Keith Westcott discovered the ancient remains beneath a crop in a field near Broughton Castle near Banbury,” according to HiTech.

Westcott, 55, decided to investigate the site after hearing that a local farmer, John Taylor, had plowed his tractor into a large stone in 1963. Taylor said he saw a hole had been made in the stone and when he reached inside, he pulled out a human bone.

Broughton Castle.

This was the woman’s body — experts believe she died in the 3rd century. The land previously belonged to Lord and Lady Saye and Sele, the parents of Martin Fiennes, who now owns the land.

The Daily Mail reports that Martin Fiennes “works as a principal at Oxford Sciences Innovation and is the second cousin of British explorer Ranulph Fiennes and third cousin of actors Ralph and Joseph Fiennes.”

According to the Daily Mail, Westcott had a “eureka moment” when he found “a 1,800 year-old tile from a hypocaust system, which was an early form of central heating used in high-status Roman buildings.”

The 85m by 85m (278ft x 278ft) foundations date back to 99 AD and were discovered beneath a crop in a field near Broughton.

Using X-ray techniques such as magnetometry, the walls, room outlines, ditches, and other infrastructures were revealed. The villa’s accommodation would have included a bath-house with a domed roof, mosaics, a grand dining room, and kitchens.

The largest Roman villa previously found in England is the Fishbourne Palace in West Sussex, which dates back to 75 AD.

Archaeological excavation

The palace at Fishbourne was one of the most noteworthy structures in Roman Britain. Only discovered in the 1960s, the site has been extensively excavated, revealing that it was originally a military site. Lying close to the sea, Fishbourne was ideal as a depot to support Roman campaigns in the area.

Built on four sides around a central garden, the site covered about two hectares, which is the size of two soccer fields. The building itself had about 100 rooms, many with mosaics. The best-known mosaic is the Cupid on a Dolphin. Some of the red stones are made from pieces of red gloss pottery, most likely imported from Gaul.