Charles Rennie Mackintosh, born in Glasgow, Scotland on June 7, 1868, and died in London on December 10, 1928, was a prominent British architect, designer, and watercolorist. He is recognized as the leading figure of the Glasgow School, a movement stemming from the Arts & Crafts that influenced the Modern Style, an English version of Art Nouveau.

Within the Glasgow School of Art, Mackintosh led a group of artists known as The Four, rebelling against the adverse effects of industrialization. Through his creations, he advocated for a return to medieval lines, drawing inspiration from neo-Gothic style and exploring natural motifs.

As an architect, he executed several notable constructions, including the renowned tea room The Willow Rooms, the Scotland Street School in Glasgow, and the Hill House residence in Helensburgh. His major work remains the design of the new Glasgow School of Art building, constructed between 1897 and 1909, which earned him international recognition. Collaborating with his wife Margaret MacDonald Mackintosh (1864-1933), he also designed interiors characterized by original furniture and decorative panels.

By the mid-1920s, the couple had settled in the south of France, in the Pyrénées-Orientales, where Charles Rennie Mackintosh devoted himself to painting. Due to tongue cancer, he returned to London in 1927, where he passed away the following year.