Given a paragraph, your job is to generate a question that can be answered from the passage. The answer to your question should be a single entity, person, time, etc. that can be extracted from the passage.

Between 1402 and 1405, the expedition led by the Norman noble Jean de Bethencourt and the Poitevine Gadifer de la Salle conquered the Canarian islands of Lanzarote, Fuerteventura and El Hierro off the Atlantic coast of Africa. Their troops were gathered in Normandy, Gascony and were later reinforced by Castilian colonists.
What continent are the Canarian Islands off the coast of?