Khentkaus I, also referred to as Khentkawes, was a royal woman who lived in ancient Egypt during both the Fourth Dynasty and the Fifth Dynasty. She may have been a daughter of king Menkaure, the wife of both king Shepseskaf and king Userkaf (the founder of the Fifth Dynasty), the mother of king Sahure. Some suggest that she was the regent for one of her sons. Perhaps, in her own right, she may have been the king of Upper and Lower Egypt, which aspects of her burial suggests. Her mastaba at Giza – tomb LG100 – is located very close to Menkaure's pyramid complex. This close connection may point to a family relationship. Although the relationship is not clear, the proximity of the pyramid complex of Khentkaus to that of king Menkaure has led to the conjecture that she may have been his daught