People / group

Clan Sinclair

Clan Sinclair is a Scottish clan of Norman origin based in Caithness and Orkney. In 1379 Henry Sinclair was invested as Earl of Orkney by the king of Norway, and his descendants held the earldom until William Sinclair gave it up to James III of Scotland in 1470. The family later held the earldom of Caithness and built Rosslyn Chapel.

Clan Sinclair
Image: Celtus (Celtus @ english wikipedia) · CC BY-SA 3.0 · Wikimedia Commons

Mentioned in 1 state history

Earldom of Orkney

See also

Cite this entry
APA
The Epoch Institute. (2026). Clan Sinclair. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/clan-sinclair
MLA
“Clan Sinclair.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/clan-sinclair. Accessed .
Chicago
The Epoch Institute. “Clan Sinclair.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/clan-sinclair.
Harvard
The Epoch Institute (2026) ‘Clan Sinclair’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/clan-sinclair (Accessed: ).

Last reviewed October 2026Random entry ↻