Thirlstane is recorded in this Index as a Scottish barony and regality in the counties of Berwick and Lanark. The earliest record identified so far is dated 1587. It also appears in the sources as Thirlstaine (Berwick) and Thirlestane.
The historical record
References identified
Register of the Great Seal
Great and Privy Seal union charters of 28 July 1587 and 7 March 1593, recorded in RPS 1661/1/209; RMS entry numbers unresolved. The later charter was ratified on 8 July 1594.
Retours and Lyon records
Retours: Berwick 281, 428, 461 — baronia; Berwick 51, 62, 281, 428, 461, 473 and Lanark 256 — regalitas. Published Retour index, vol. III (1816); .
The references reproduce the wording and qualifications recorded in the index. How the Index is compiled.
Historical references and present ownership are separate questions. Inclusion in this research index does not establish the present holder of a dignity. Spotted an error or a missing reference? Suggest an edit.