This is the flag of The Union of Catalonia and Occitania. It come from a world where the Black Death killed 80% of the populations of Europe, the Middle East and North Africa. Among other things this meant that the Renaissance never happened, Europe remained backwards and Medieval, West Africa became the heart of Islam and Islam itself liberalized a fair bit.
Over the years the nations of East Asia and West Africa became major colonial powers. Fortunately, Catalonia and Occitania have managed to avoid colonization. Their citizens are evenly mixed between followers of the Catharist faith and those who follow the pope in Avignon. They are also noted for being more tolerant and less fanatical than their neighboring nations. It is because of that tolerance that Catalonia and Occitania has become a major trading hub and center of learning. In fact, they have one of the highest literacy rates in all of Europe.
Catalonia and Occitania are also famous for their food and wine. Their largest cities include Barcelona, Marseilles and Toulouse. With merchants from throughout the world visiting their ports, a high education rate and relative peace it might be possible that Catalonia and Occitania will be a major leader in getting Europe respect on the world stage.