Complex sentence: The Fourteenth Dynasty of Egypt regroups rulers reigning during the Second Intermediate Period over the Nile Delta region of Egypt for circa 75 (c.1725--1650 BC) up to 155 years (c.1805--1650 BC), depending on the scholar.
Split into simpler sentences: The Fourteenth Dynasty of Egypt was a series rulers reigning during the Second Intermediate Period over the Nile Delta region of Egypt. It lasted between 75 (c.1725--1650 BC) and 155 years (c.1805--1650 BC), depending on the scholar.