Henry Sinclair
Henry Sinclair is attested in The Orkneyinga Saga as a member of the St.
Henry Sinclair is attested in The Orkneyinga Saga as a member of the St. Clair line connected to the earldom of Orkney. Records show he "was himself married to a daughter of the younger Malise, styled 'Elizabeth de Stratherne, daughter of the late reverend and venerable Malise, Earl of Orkney'" (The Orkneyinga Saga, The Earldom In The Line Of St. Clair). By Elizabeth he had a daughter Margaret (The Orkneyinga Saga, The Earldom In The Line Of St. Clair).
The Orkneyinga Saga presents Henry Sinclair through documentary evidence rather than narrative -- the attestation by the Lawman and Canons of Orkney in 1422. This legal certification of his marriage to Elizabeth de Stratherne establishes the St. Clair claim to the earldom through marriage into the previous ruling line. The detail is genealogical and administrative, recording a dynastic connection that legitimized the St. Clair succession to Orkney.
On trail: Genealogies