Talash Hotels Group's Stoke Rochford Hall has joined Best Western's BW Premier Collection of luxury boutique hotels.
The hotel reopened in April 2017 following a multimillion-pound refurbishment of the Grade I-listed, 96-bedroom hotel near Grantham, Lincolnshire, after it was acquired by Talash.
The property was previously used by the National Union of Teachers as a conference and training centre from 1978. The freehold of the Victorian property is owned by Stoke Rochford Estate.
John McKitterick, general manager of Stoke Rochford Hall, said: "The Best Western family is the perfect fit for us, as we can join an extremely successful global brand, all while showcasing our independent property features, making the future an exciting one."
Rob Paterson, chief executive at Best Western Great Britain, added: "We're thrilled to welcome Stoke Rochford Hall, BW Premier Collection to the brand and can't wait to see what the rest of the year has in store."
Best Western Great Britain has more than 250 independent hotel members, 20 of which are part of the BW Premier Collection.
Talash Hotels Group has a portfolio of 13 hotels in the UK, including Risley Hall Hotel & Spa in Risley, Derbyshire; and Quorn Country hotel in Leicestershire. It intends to have 20 hotels by 2020.