Why was 'Guernica' by Pablo Picasso censored?

I’m not sure the questioner is using the term ‘censored’ correctly. Guernica was never censored. In fact it achieved immediate fame and artistic status in 1937 and went on tour after the World’s Fair, to great acclaim. It was not given to Spain until 2 years after Franco’s death and after democracy had been reestablished in that country. read more

Guernica is a mural-sized oil painting on canvas by Spanish artist Pablo Picasso completed in June 1937, at his home on Rue des Grands Augustins, in Paris. The painting, now in the Museo Reina Sofia in Madrid, was done with a palette of gray, black, and white, and is regarded by many art critics as one of the most moving and powerful anti-war paintings in history. read more

The reproduction of Picasso's famous antiwar mural, Guernica, hanging at the entrance to the UN Security Council, was censored in January, 2003. Picasso agreed to paint a mural for the Spanish Pavilion of the 1937 International World's Fair. read more