Was Marco polo a sailer for Spain?

No, Marco Polo was not a sailor for Spain. He was a Venetian merchant and explorer who traveled extensively through Asia, particularly in the 13th century. His journeys were primarily overland along the Silk Road, and he is best known for his travels to China and his account of the court of Kublai Khan. Polo's adventures were not associated with Spain, as he operated under the Venetian Republic.