Tain in Ross-shire was a burgh constituency that elected one commissioner to the Parliament of Scotland and to the Convention of Estates.
After the Acts of Union 1707, Tain, Dingwall, Dornoch, Kirkwall and Wick formed the Tain district of burghs, returning one member between them to the House of Commons of Great Britain.
References
Tain (Parliament of Scotland constituency) Wikipedia(Text) CC BY-SA