About John Sinclair, Bishop of Bechin
Wikipedia Biographical Summary
"John Sinclair (died April 1566) was an Ordinary Lord and later Lord President in the Court of Session. He married Mary, Queen of Scots to Lord Darnley.
He was the fourth son of Sir Oliver Sinclair of Roslin (d. after April 11, 1510) by his spouse Margaret, daughter of William Borthwick, 2nd Lord Borthwick. John was a younger brother of Henry Sinclair, Bishop of Ross, and their sister Margaret was married to Robert Lauder, of The Bass (d. June 1576). In a Precept of Clare Constat (GD122/1/340, NAS) dated May 2, 1566, John [Sinclair], Bishop of Brechin, is referred to as "maternal uncle of Robert Lauder of Popple, knight, heir of Robert Lauder of Bass, and Margaret Sinclare, sister of Robert Sinclare of Over Liberton".
SOURCE: Wikipedia contributors, 'John Sinclair (bishop)', Wikipedia, The Free Encyclopedia, 9 April 2012, 19:51 UTC, <http://en.wikipedia.org/w/index.php?title=John_Sinclair_(bishop)&oldid=486489945> [accessed 30 November 2012]
"John Sinclair, Rector of Snaw, afterwards Bishop of Brechin, and Lord President - Fourth son of Sir Oliver Sinclair of Roslin, and younger brother of Henry Sinclair, Bishop of Ross. He was on the 27th April 1540, admitted as an Ordinary Lord being then Rector of Snaw. He afterwards obtained the Deanery of Restalrig. He attended bis brother Henry to France in the year 1564, and brought back with him to Scotland the materials which the bishop has amassed for a continuation of Boece's History of Scotland. He also succeeded him as President of the Court. The Dean of Restalrig had the honour of uniting Queen Mary and Lord Darnley in the Abbey Church of Holyroodhouse, on the 29th July 1565. He was shortly afterwards promoted to the see of Brechin, but did not long enjoy the Episcopal dignity. He was seized with fever, and died in the month of April 1566."
SOURCE: An Historical Account of the Senators of the College of Justice: From Its Institution in MDXXXII; by George Brunton, David Haig; 1832; Page 63