Original sentence: After the Spanish victory in the War of the Portuguese Succession, Philip II of Spain obtained the Portuguese crown in 1581, and Portugal and its overseas territories came under his rule with the so-called Iberian Union, considered by some historians as a Spanish conquest
Edited sentence: After the Spanish victory in the War of the Portuguese Succession, Philip II of Spain obtained the Portuguese crown in 1581, and Portugal and its overseas territories came under his rule with the so-called Iberian Union, considered by many historians as a Spanish conquest