Answer
The pope recognized Henry V as the lawful emperor.
Step-by-step explanation
This was a legally arrangement of a promise between the representatives of Rome and Paris. It was meant to bring stability after the reforms caused by the church.This agreement brought to an end the period of struggle of the power.It is called Concordat of worms because it was made near the city of worms by Pope calixtus II and the Roman Emperor Henry V. And then its after that agreement the pope recognized Henry V as the lawful emperor.