During a new investigation into the original timber used to create the bell tower at St Giles, important new dates were revealed.
The investigation has uncovered some interesting new details about the dates of construction of the Kirk which is almost 900 years old.
With funding from Historic Environment Scotland, (HES) Dr Coralie Mills carried out investigative work on the five storey timber frame. Dr Mills is a dendrochronologist which means that she can date the timber form the number of tree rings it has.
She leads the South East Scotland Oak Dendrochronology project (SESOD) and examined the timber at St Giles to recover valuable data from it. The church was founded in 1124, but it has had renovation works carried out mainly in the 19th century.
She found that the probable construction date for the bell tower is around 1460 and 1467. At that time Pope Paul II conferred collegiate status on St Giles.
The testing was able to establish two felling dates for timber in the frame – in the winters of 1453/54 and 1459/60. The research also revealed that the timber was sourced from one of the last remaining reserves of old growth oak timber in Scotland, the Royal Forest of Darnaway, in Morayshire, and that many of these trees would have been over 300 years old when felled.
Dr Coralie Mills, the dendrochronologist who carried out the work, said: “Discovering the date and provenance of the timbers in the tower at St Giles’, and allowing a new insight into the medieval history of our native woods, has been a highlight of my career as a dendrochronologist in Scotland.
“The mid-15th century was a pivotal time when Scotland turned to Scandinavia for most of its timber supply, but this research shows that Darnaway still had reserves of old growth oak, by then a very scarce and valuable resource in Scotland. Furthermore, the St Giles’ timbers match closely with other material from reused timber in the Chapel Royal at Stirling Castle, which is also thought to have come from Darnaway.
“These results enhance our understanding of St Giles’ construction history and provide valuable insights into the medieval timber supply in Scotland.”
Dr. Kirsty Owen, Deputy Head of Archaeology at HES said: ” We’re delighted to have supported the work of the SESOD project through our archaeology grants programme, which is part of our ongoing commitment to raise the profile of archaeological science and its practical role in the conservation of our heritage.
“This discovery at St Giles’s demonstrates that dendrochronological research has the potential to significantly enhance our understanding of our historic buildings, which in turn will assist in their conservation.”
John Andrew, Member of the St Giles’ Kirk Session and Convenor of the committee responsible for the building fabric, said: “The investigation and subsequent discovery of the history of the ancient timbers in the crown tower at St Giles’ has uncovered another key element in the fascinating history of this great and iconic building.
“The continuing research into the history of St Giles’ will continue to improve our understanding on how the building was constructed and will inform how the building will be conserved, and maintained for generations of worshippers and visitors in the future.”
John Lawson, Edinburgh’s City Archaeologist and supporter of the project. said: “This fascinating research into the original timber used to build the bell tower of St Giles’ has given us new insight into the Kirk, a building that we thought we knew so well.
“This has been an incredible piece of work which has helped shed light on the long-asked question of exactly when and how the present tower was constructed. St Giles’ Kirk has changed in many ways over the last 900 years and until now various dates had been given for its construction from 14th century onwards. This research now confirms a 15th century date and highlights the importance of undertaking archaeological investigations in our historic buildings.“
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