This family's most famous artist used a series of cones and cylinders as body parts in a painting said to resemble "an explosion in a shingle factory," that was mysteriously designated "No. 2" and caused a stir at the Armory Show.
An artist from this family painted a set of gradually-larger balloons rising from a shadowy city skyline in the painting Broken and Restored Multiplication. Before dying of typhoid fever contracted during his service in World War I, another artist from this family created the large bronze Cubist sculpture The Horse. Another artist from this family suggested the name "Section d'Or" for a collective of Orphist and Cubist artists. The most famous artist from this family went to a confectioner's shop and painted the three rotating drums of a (*) chocolate grinder he saw there. Two brothers decided to set themselves apart from the rest of this family by adopting the surname of the poet Francois Villon. This family's most famous artist used a series of cones and cylinders as body parts in a painting said to resemble "an explosion in a shingle factory," that was mysteriously designated "No. 2" and caused a stir at the Armory Show. For 10 points, give this surname of the painter of Nude Descending a Staircase.
An artist from this family painted a set of gradually-larger balloons rising from a shadowy city skyline in the painting Broken and Restored Multiplication.
Duchamp [or Villon before mentioned; or Duchamp-Villon; or Crotti]