Brady was accepted as a "free man" of the Edinburgh craft of goldsmiths on 15 May 1561, as were David Denniestoun, Henry Thomson, and Gavin Freithman.
[2] In 1568, Mungo Brady was involved in arrangements made by Edinburgh burgh council for paying John Knox's rent for his lodging, known as "hous maill".
[6] Regent Lennox asked Brady to supply a substitute set of the Honours of Scotland which were needed to hold a Parliament at Stirling.
[7] The traditional Crown of Scotland, sword of state and sceptre were inaccessible, held in Edinburgh Castle and used at a rival Queen's Parliament.
The Parliament was held in August 1571 at Stirling Tolbooth, which was decorated with royal tapestry, and James VI attended in person.
[14][15] His widow, Margaret Douglas, is thought to have commissioned the famous "Darnley or Lennox jewel" in commemoration, though it is not certain who made this pendant, now displayed at Holyrood Palace.
[23] On 16 September 1577, Regent Morton signed an order for the Master of Household to employ Brady as the King's goldsmith,[24][25] confirmed by privy seal letter on 6 December 1578.