Original sentence: Although he too had been born in Spain, he had been administering his brother's affairs in the Empire since 1531, in which year he had been proclaimed as Roman King, an honorific sometimes conferred upon the most logical candidate as next emperor.His son, on the other hand, pursued a militantly aggressive policy toward the Dutch, resulting in the Dutch rebellion shortly after Philip became king.Philip was culturally Spanish: having been born in  Valladolid and raised in the Spanish court, he spoke Spanish, and he preferred to live in Spain.Philip's militant response meant the occupation of the upper provinces by Spanish troops, and the constant ebb and flow of Spanish men and provisions on the Spanish road to and from Flanders
Edited sentence: Although he too had been born in Spain, he had administered his brother's affairs in the Empire since 1531, in which year he had been proclaimed as Roman King, an honorific sometimes conferred upon the most logical candidate as next emperor.His son, on the other hand, pursued an aggressive policy toward the Dutch, resulting in the Dutch rebellion shortly after Philip became king.Philip was culturally Spanish: having been born in Valladolid and raised in the Spanish court; he spoke Spanish, and he preferred to live in Spain.Philip's militant response meant the occupation of the upper provinces by Habsburg Spain and the constant ebb and flow of Spanish men and provisions on the Spanish road to and from Flanders