He was educated at the
University of Glasgow. He was a prisoner in
Edinburgh Castle in October 1585, and released with a caution of £5,000
Scots from his brother, James Murray of Blackbarony, to remain in Edinburgh. In July 1592 Murray was commanded to demolish the towers of
Harden and
Dryhope, belonging to
Walter Scott of Harden, because Scott had taken part in the assault on
Falkland Palace led by
Francis Stewart, 5th Earl of Bothwell in June. Murray was appointed a Commissioner of Borders in 1603, and was knighted for this service in 1605. He became a member of the
Privy Council of Scotland in 1610 and as a Commissioner to the Exchequer received a pension of £1200 per annum. In August 1610 his son was challenged by the second son of
Lord Cranstoun to fight a duel, which the Privy Council was anxious to prevent. Cranstoun's son James was imprisoned in
Blackness Castle, young Murray in
Edinburgh Castle for concealing the meeting. Lord Cranstoun was questioned by the Council on suspicion that he had encouraged his son for personal advantage. James Cranstoun was banished. In 1612 he was made a
Lord of Session as Lord Elibank. In the same year as Shire Commissioner for
Selkirkshire he obtained a seat in the
Houses of Parliament. Gideon Murray was the uncle of
Sir Robert Kerr, Lord Rochester and Earl of Somerset, the favourite of King James. Somerset's influence led to the appointment of Murray as
Treasurer Depute of Scotland. The role involved management of the repairs to the royal castles and palaces in Scotland, as well as work on Glasgow Cathedral in 1620. In June 1614 he wrote to the king about silver mines in Scotland at
Hilderston which were now yielding metal. In March 1615 he was made keeper of the Scottish crown jewels, known as the
Honours of Scotland, which he received from
John Arnot of Birswick,
Provost of Edinburgh. The condition of the crown and sword were recorded. To help finance the visit of King James to Scotland in 1617, Murray borrowed £66,666 Scots from
William Dick, a merchant burgess of Edinburgh, and the advocate Alexander Morrison. He repaid them through tax receipts. A further £96,000 was sent from England, including some money from the privy purse. Preparations for the royal visit included repairs at
Linlithgow Palace, the palace block at
Edinburgh Castle, works at
Stirling Castle, and fireworks at Edinburgh Castle and the masque and morris dance at
Holyrood Palace on the king's birthday, 19 June. King James gave particular instructions for the chapel in Holyroodhouse, and encouraged Gideon Murray to contract the London stonemason
Nicholas Stone to design and supervise the decoration. In 1618 King James gave a gold basin which the burgh of Edinburgh had given to him the year before, with two gilt cups, one in the form of a salmon, from the burgh of Glasgow, a gold cup presented by Carlisle, with some valuable
musk and
ambergris, and an iron chest that had belonged to the
Earl of Gowrie. In June 1620 he explained how a ban on the circulation of foreign coins in Scotland had damaged the economy. In 1621
James Stewart, Lord Ochiltree accused Murray of misusing public money, and this brought about a nervous breakdown and his death on 28 June 1621. He was buried at
Holyrood Abbey in Edinburgh. After his death the
crown, sceptre and
sword of state, known collectively as the Honours of Scotland, and formerly in his keeping, with the silver plate and
dornick and damask table linen used in 1617, were examined by the
Privy Council at the
royal mint in Edinburgh and found to be in good order. ==Castles, towers, and gardens==