Answer:
The painter of Guernica was Pablo Picasso.
Step-by-step explanation:
He was a Spanish painter and Guernica was one of his best works. The painting is regarded as one of the most powerful anti-war paintings of history.
The painting was made in response to the first aerial bombing in the world´s history performed by the Nazis and the Fascist to the town of Guernica in Spain. The bombing was made under the request of Franco the dictator who was ruling Spain.
I hope this answer helps you.