I want to know the answer to the following question:
What secular rulers did the Concordat of Worms increase the power of?
All the background I'm provided with is that "The emperor saw the protection of the Church as one of his responsibilities as well as wanting to preserve the right to appoint his own choices as bishops within his lands, but the papacy insisted on the Church's independence from secular lords.". Is that enough to answer the question?
Answer: no