I believe I know something about at least one painting by Piet Mondrian that has been missing since about 1910 or so.
He was interested in painting.
Piet Mondrian
He just started painting
Neo-plasticism
Piet Mondrian died in 1944.
Piet Mondrian was born on March 7, 1872.
Probably Broadway Boogie-Woogie, painted in 1943.
Developing a special kind of non-representational (abstract) painting.
Piet Mondrian was Dutch.
Piet Mondrian died of pneumonia on February 1, 1944.
Fritz Mondrian