The 15th century was a time of Islamic economic expansion, known as the Valencian Golden Age, in which culture and the arts flourished. Concurrent population growth made Valencia the most populous city in the <answer>Crown of Aragon</answer>. Local industry, led by textile production, reached a great development, and a financial institution, the Canvi de Taula, was created to support municipal banking operations; Valencian bankers lent funds to Queen Isabella I of Castile for Columbus's voyage in 1492. At the end of the century the Silk Exchange (Llotja de la Seda) building was erected as the city became a commercial emporium that attracted merchants from all over Europe.
Of what area was Valencia the largest city?
Crown of Aragon