The final years of Henri Matisse’s artistic life, marked by the Nazi occupation of France and a brush with death and surgery, will light up a twilight retrospective opening next week. From Tuesday, the Grand Palais in Paris will see a reunion of seminal series by the late French master, such as “Blue Nudes”, “Jazz” or the monumental “La Gerbe” (The Sheaf), revealing the ageing painter’s prolific work ethic despite his health woes. The exhibition brings together 320 works, from media as varied as paintings, sketches, gouache…