Answer:
1. Most successful proprietary colony --- Pennsylvania
2. Also known as the Society of Friends --- Quakers
3. Founded Pennsylvania --- William Penn
4. Capital of Pennsylvania --- Philadelphia
Explanation:
1- The proprietary colonies were territorial concessions granted by the king to the Lords so that the latter can enhance them by promoting their settlement and by introducing the laws and customs of England. Pennsylvania was created as a propietary colony, and the charter of the propietary colony remained in the hands of the Penn family until the War of Independence of the United States, when the state of Pennsylvania was created and became one of the thirteen original states.
2- The Religious Society of Friends, generally known as the Quakers, is a dissident religious community founded in England by George Fox (1624-1691). They were extended in the United States by the activities of William Penn, especially in the state of Pennsylvania.
3- The Province of Pennsylvania was founded in British America by William Penn on March 4, 1681 as dictated by a royal order of Charles II of England.
4- Founded in 1682, Philadelphia was the most populous city of the Thirteen Colonies during the 18th century, the capital of the Pennsylvania Colony and the third most populous city of the British Empire (after London and Dublin), before provisionally becoming the capital city from United States. It was quickly overtaken by New York and ceded its status as capital to the brand new city of Washington DC. Today, Philadelphia is the main metropolis of the state of Pennsylvania, although the capital and seat of government is Harrisburg.