Answer: To encourage settlers to come to his colony
Step-by-step explanation:
The colony of Pennsylvania was founded by William Penn on land given to him by the King of England to settle a debt that the King had owed to Penn's father. The King then named the colony after Penn's father.
William had asked for the land in order to allow him set up a colony where the Quakers (himself a Quaker as well), could attain religious freedom and be free from persecution.
In order to get more people to settle in the colony, William allowed for religious freedom at a time where the other colonies were still dragging their feet about it. This led to many people settling in Pennsylvania like William wanted.