Thanage
The Thanage is a system of nobility, predating the modern Peerage in Scandinavia and the British Isles.
The basic title in the Thanage is the Thane, who in the Peerage is called a Baron.
Superior to the Thane is the Median-Thane, who in the Peerage is called a Count
Superior to the Median-Thane is the King`s Thane, who is a Prince.
The female titles are correspondingly Thaness, who is a Baroness.
Superior to the Thaness is the Median-Thaness, who is a Countess.
Superior to the Median-Thaness, is the King`s Thaness who is a Princess.
Thanage thus denote the rank held by such a thegn.
In medieval Scotland David I, an Anglophile, introduced "thanes" to replace the Gaelic "tòiseach".
Therefore, Scottish thanage denotes the land and duties held and undertaken by the thanes.