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, a title usually conferred upon the most logical candidate as next emperor
Edited 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