Piet Mondrian’s final trio of paintings was ... After an interval of painting, he continued, ‘You should know that all my paintings were done first and the theory derived from them.

Mondrian's last painting, Victory Boogie-Woogie, which he began in 1943, sadly remained unfinished at the time of the artist's death on February 1, 1944, from pneumonia. The painter's sole heir ...