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Henry I Sinclair, Earl of Orkney


Henry I Sinclair, Earl of Orkney, Baron of Roslin (c.1345 – c.1400) was a Scottish and a Norwegian nobleman. Sinclair held the title Earl of Orkney under the King of Norway (see Earl of Orkney: Scottish Earls under the Norwegian Crown). He is sometimes identified by another spelling of his surname, St. Clair. He was the grandfather of William Sinclair, 1st Earl of Caithness, the builder of Rosslyn Chapel. He is best known today because of a modern legend that he took part in explorations of Greenland and North America almost 100 years before Christopher Columbus. William Thomson, in his book The New History of Orkney, wrote: "It has been Earl Henry's singular fate to enjoy an ever-expanding posthumous reputation which has very little to do with anything he achieved in his lifetime."

Henry Sinclair was the son and heir of William Sinclair, Lord of Roslin, and his wife Isabella (Isobel) of Strathearn. She was a daughter of Maol Ísa, Earl of Orkney. Henry Sinclair's maternal grandfather had been deprived of much of his lands (the earldom of Strathearn being completely lost to the King of Scots).

Sometime after 13 September 1358, Henry's father died, at which point Henry Sinclair succeeded as Baron of Roslin, Pentland and Cousland, a group of minor properties in Lothian.

Three cousins – Alexander de L'Arde, Lord of Caithness; Malise Sparre, Lord of Skaldale; and Henry Sinclair – were rivals for the succession to the earldom of Orkney. On 2 August 1379, at Marstrand, near Tønsberg, Norway, King Haakon VI of Norway invested and confirmed Sinclair as the Norwegian Earl of Orkney over a rival claim by his cousin Malise Sparre. In return Henry pledged to pay a fee of 1000 nobles before St. Martin's Day (11 November), and, when called upon, serve the king on Orkney or elsewhere with 100 fully armed men for 3 months. As security for upholding the agreement the new earl left hostages behind when he departed Norway for Orkney. It is unknown if Haakon VI ever attempted to call upon the troops pledged by Henry or if any of the fee was actually paid. Shortly before his death summer 1380 the king permitted the hostages to return home.


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