Around 1892, Mackintosh met fellow artist Margaret Macdonald at the Glasgow School of Art. He and fellow student Herbert MacNair, also an apprentice at Honeyman and Keppie, were introduced to Margaret and her sister Frances MacDonald by the head of the Glasgow School of Art, Francis Henry Newbery, who saw similarities in their work. Margaret and Charles married on 22 August 1900. The couple had no children. MacNair and Frances also married the previous year. The group worked collaboratively and came to be known as "The Four", and were prominent figures in Glasgow Style art and design. Mackintosh and Margaret married, setting up their first home in Mains Street on Blythswood Hill, the street later being renamed as Blythswood Street, Glasgow. Subsequently, they moved to Southpark Avenue, close to Glasgow University.