John Stewart (constable of Stirling Castle)

A blacksmith, John Cowan, made an iron support for the new doorway from the gallery into the passage that leads to the rooms above the king's outer chamber.

[2] Stewart was ill in March 1581 and his duties were given to the gunner Michael Gardiner who became depute-keeper of Stirling Castle.

A document in the National Records of Scotland notes that in 1590, Margaret Maxtoun assigned a debt for an elaborate locket or "tablet" owed to her by Colin Campbell of Glenorchy (who had died in 1583) for the benefit of her son John, who was to receive 100 French crowns and two dairy cows.

The jewel, acquired by the Campbells around the year 1548, was set with a dozen precious stones, and depicted the Parable of the Great Banquet, described in Scots as:grawin be goldsmytht wark how that Chryst maid a comparisone how that a certane king maid ane bankett and send furth his serviands to call in his jestis, and off thair answer and excuiss as it is contenit in the haly evangell thairuponegraven by goldsmith work how that Christ made a comparison how that a certain king made a banquet and sent forth his servants to call in his guests, and of their answers and excuses as it is contained in the Holy Gospel thereupon[9] The "answers and excuses" of the guests is a reference to Luke 14: 15–24, and Matthew 22: 1–14.

In 1640, the Campbell family owned a gold enamelled "target" set with precious stones and said to have been a gift from James V of Scotland.