 With Sir Robert Carnegie, he agreed an indenture with English commissioners for peace on the Scottish border at Berwick upon Tweed.In 1555 Sir John Bellenden audited accounts for fortifications built by Mary of Guise at Inchkeith.He was a Commissioner for the Treaty of Peace with Anna of Oldenburg, signed at Aberdeen 19 October 1556 confirmed by Mary, Queen of Scots, 26 September 1557.