Complex sentence: Victoria was also being paid much more at the Descalzas Reales than he would have earned as a cathedral chapelmaster, receiving an annual income from absentee benefices from 1587-1611.
Split into simpler sentences: Victoria was also being paid much more at the Descalzas Reales than as a cathedral chapelmaster. He was receiving an annual income from absentee benefices from 1587-1611.