Magellanic Clouds
The first Europeans to see the Clouds were Italian explorers Peter Martyr d'Anghiera and Andrea Corsali at the end of the 15th century.  Antonio Pigafetta also saw them, when he went with Ferdinand Magellan on his circumnavigation of the  world in 1519-1522. However, naming the clouds after Magellan did not become widespread until much later. In Bayer's 1661 book, Uranometria, they are called nubecula major and nubecula minor.  In the 1756 star map by French astronomer Lacaille, they are called le Grand Nuage and le Petit Nuage ("the Large Cloud" and "the Small Cloud").