Why did Christopher Columbus live in Lisbon after 1476?

After surviving a shipwreck off the coast of Portugal in 1476, Christopher Columbus established himself in Lisbon alongside his brother, Bartholomew.1

During his time in Lisbon, Columbus was employed as a chart maker, though he primarily functioned as a seagoing entrepreneur. His residence in the city facilitated his involvement in various maritime activities, including voyages to Iceland and Ireland in 1477 and trading sugar in Madeira in 1478. Additionally, his life in Portugal led to his marriage to Felipa Perestrello e Moniz, a member of an impoverished noble Portuguese family, in 1479.1