Henri Matisse was a French artist who is widely regarded as one of the most important figures in the history of modern art. He was a leader of the Impressionist movement, and his works are characterized by bold colors and expressive brushwork. Matisse's work has been described as 'the bridge between the 19th century and the modern era'. His influence on the development of modern art is undeniable, and his works remain some of the most beloved and iconic pieces of art in the world.