General Notes

Member of Parliament
SOURCES: LDS FHL Ancestal File #    (familysearch.org)
AWTP:
"Ancestors of a 21st century British family" Richard Hodgson mail@@ancestorsearch.co.uk, with research notes provided and given below:
"John was born in 1300 and is known to have been a Burgess of Perth by 1328. He received charters for the ward and relief of the lands of his nephew, William de Moravia, Lord of Tullybardine in 1352.
He also received charters over the following 20 years or so for Kyncarrouchy, Meikleour, Aldie, Lednoch, Meikle Kinnaird, Pettlands of Strathord and Tullibeagles.
On 26/Sep/1356-7 he was one of the Commissioners appointed to negotiate the ransom of King David II who had been captured by the English in battle near Durham ten years earlier and held to ransom in the Tower of London.
He was Member of Parliament for Perth in 1364 and a frequent Ambassador from Scotland to France, Flanders and England.  He is known to have been Provost of Perth in 1356 and 1374.
Through time, John rose to become an eminent statesman, and was one of the wealthiest Scottish foreign traders of his time. However, on a return trip from Flanders in 1376, he was shipwrecked off the English coast and taken prisoner to Scarborough from where he was soon released. (For a more detailed account of this episode, see Sir Andrew Mercer.)
He went to England again as Nuncio in 1378-9 and died in 1379-80.
John's descendants continued to represent Perth as Burgesses and Provosts until 1505 during most of which time the town was the capital of Scotland.
Ada Murray was the daughter of Sir Andrew Murray of Tullibardine by his spouse, Ada, daughter of Malise, Seneschal of Strathearn. Sir Andrew was executed in 1332 for his allegiance to Edward Balliol who made a bid for the throne after the death of Robert the Bruce.
Ada Murray was also granddaughter to Sir William Murray and his wife (also Ada) who was herself a great granddaughter of the Earl of Lennox and his wife, Ada, daughter of David, Earl of Huntingdon, grandson of David 1st of Scotland.
John Mercer and Ada Murray were married and had the following children
Andrew Mercer (b:c.1330. d:1389x1391.)
Thomas Mercer
John Mercer
Marion Mercer (Spouse: Robert Skene of Skene)
Robert Mercer
Daughter (name not known)