Sir George served as deputy presiding officer from 1999 to 2003, and then as presiding officer from 2003 to 2007. He was elected as MSP for the Mid Scotland and Fife region from 1999 to 2003 and then for the Ochil constituency from 2003 to 2007. During his time as presiding officer, he oversaw the completion of the new Scottish Parliament building. He was also MP for Clackmannan and East Stirlingshire from 1974 to 1979.

A book of condolence has been opened and flags at the Scottish Parliament lowered as a mark of respect.

Ms Johnstone said: “On behalf of all at the Scottish Parliament, I express our deepest sadness at the death of our second presiding officer, the Rt Hon Sir George Reid. He’ll be remembered not only for bringing the Holyrood construction project to completion, but for building confidence and ambition in our young Parliament.

“A proud son of Clackmannanshire and an internationalist by outlook, he was determined to put Holyrood on the map at home and abroad, and very much succeeded. By the time he left office, Holyrood was established at the centre of public life in Scotland and over a million people had visited to see for themselves the new Parliament in action.

“The story of devolution and the early years of our Parliament will remember George fondly and with gratitude. My deepest condolences to Daphne, his daughter and grandchildren and his many friends and colleagues. Sir George was welcoming and supportive to me, in Holyrood and outwith. He will be very much missed.

“Flags at Holyrood have been lowered as a mark of respect.”