A royal family is the extended family of a monarch. Generally, the head of a royal family is a king or queen regnant. The phrase "imperial family" more appropriately describes the extended family of an emperor or empress regnant, while the phrases "ducal family", "grand ducal family" or "princely family" are more appropriate in reference to the relatives of a reigning duke, grand duke, or prince. It is also considered proper in some circles to refer to the extended relations of a deposed monarch and his or her descendants as a royal family.
Ahmose I(mummified head pictured) was a pharaoh of ancient Egypt and the founder of the Eighteenth dynasty. He was a member of the Theban royal house, the son of King Tao II Seqenenre, and brother of the last King of the Seventeenth dynasty, King Kamose. Ahmose I assumed the throne after the death of his brother. During his reign he completed the conquest and expulsion of the Hyksos from the delta region, restored Theban rule over the whole of Egypt, and successfully reasserted Egyptian power in its formerly subject territories of Nubia and Canaan. He then reorganized the administration of the country, reopened quarries, mines, and trade routes, and began massive construction projects of a type that had not been undertaken since the time of the Middle Kingdom. This building program culminated in the construction of the last pyramid built by native Egyptian rulers. Ahmose's reign laid the foundations for the New Kingdom, under which Egyptian power reached its peak. His reign is usually dated to about 1550-1525 BC.