Magellan left a hereditary governorship to his son, but his wife and sons died, and his brother-in-law was still claiming the estate in 1540

On 24 August 1519, in the Royal Alcázar of Seville, Magellan signed his will. It records that Charles I had granted his descendants, as an entail, the government of the lands he would discover, the title of adelantado, and a twentieth of their revenues. He left this to his son Rodrigo and to the child his wife Beatriz Barbosa was then carrying. Any heir had to use the name Magallanes and his coat of arms. If his own line failed, the entail went to his brother Diego de Sosa, who would first have to leave the King of Portugal's service, live in Castile and marry there. After Diego it went to his sister Isabel. Beatriz was to be repaid her dowry of 600,000 maravedís before anything else was paid. The will also freed his slave Enrique, aged about 26, and left him 10,000 maravedís. Magellan was killed at Mactan in 1521. The transcriber's note says that after his death Duarte Barbosa called Enrique a dog, and Enrique then turned on the officers at Cebu. Beatriz and the sons died around 1521 and 1522; sources differ on the dates^†. On 21 June 1540, in Madrid, Beatriz's brother Jaime Barbosa filed this will to claim the estate for himself and his sisters. Nearly 20 years after the voyage, the Council of the Indies was still contesting the heirs' right. In 1529 Charles I had already sold his claim to the Moluccas to Portugal for 350,000 ducats^†. The will is in the Archivo General de Indias, Patronato 36, R.2.