An East Lothian company has carried out work on historic Rosslyn Chapel, including conservation maintenance to the most prominent monument in the chapel’s grounds.

Eden Architectural Conservation, based in East Linton, undertook the work, which took almost two months to complete and included a number of intricate jobs.

Alex Kelly, 45, director of Eden Architectural Conservation, took on the task.

He said: "It is a pretty rare job to carry out and it is a premier location for tourists and people who are in search of an adventure.

"There are so many visitors every single year, who come along and visit and it was just amazing to work on the chapel, to keep it in good shape for tourists, locals and future generations to come."

These consisted of small-scale repairs and consolidation to degraded stone, employing a museum-based approach, pointing of open construction joints in lime based hot mixed lime or ashlar mix, and removal of damaged and undesirable biological growth using soft bristle brushes and a super-heated steam system.

The memorial that the company carried out work on dates from 1899 and marks the burial of Francis Robert St Clair-Erskine, who became 4th Earl of Rosslyn in 1866. The 4th Earl was a renowned poet and the memorial is inscribed with words from his sonnets.

He was Lord High Commissioner to the General Assembly of the Church of Scotland on four occasions and captain of the Corps of Gentleman at Arms. In 1870 he held a Grand Masonic Fete at Rosslyn attended by over one thousand freemasons and the following year he was elected sixty-ninth Grand Master Mason of Scotland.

When he indicated in the summer of 1871 that he did not wish to be considered for re-election, a petition of seven thousand signatures raised by the Lodges persuaded him to reconsider.

He added the Baptistery to the Chapel in 1880-81 and died in 1890.

The 20ft-high memorial was carved in red sandstone by W Birnie Rhind and comprises inscription panels, hood moulding, carved stones figures, carved stones, gothic pinnacles, heraldic panel, finials and a cross.

Rosslyn Chapel is a 15th-century Scottish Episcopal Church chapel located in the village of Roslin, Midlothian. It is famous for its unique and mysterious carvings and features in the Da Vinci Code novel by Dan Brown and the book's movie with Tom Hanks.