At the age of 18 Claud Hamilton was made a gentleman of the
privy chamber to the young King James VI of Scotland. After the
Union of the Crowns in 1603, Claude Hamilton spent time with the royal court in London. In 1610 he was naturalized as a denizen of England and given lands in Ireland, described as "the small proportion of Edeneveagh in the barony or precint of Fues in
County Armagh". Some of his papers are held by the
University of Edinburgh among the
Laing manuscripts. These include estate papers relating to Ireland and Scotland, an detailing fabrics, a tailor's bill from 1614, and bill for hats, pewter, and other items. The bills include costume accessories which he bought in London for his family in Scotland and his brother
Frederick, including; a "white satin
piccadill with two laced bands of the newest fashion for a young woman", a "fine satin picadell for Phredrik of the newest fashion", with "two pair of worset stockings meet for a large young woman's leg", and "thirty yards of flowered taffeta or some other bonny stitched [embroidered] stuff for his daughters". A waistcoat of crimson taffeta was bought at the Sign of the Horse Shoe in the Old Exchange. == Marriage and children ==