Complex sentence: The later part of this period, under the Nineteenth and Twentieth Dynasties (1292--1069 BC) is also known as the "Ramesside period", after the eleven pharaohs that took the name of Ramesses.
Split into simpler sentences: The later part of this period, under the Nineteenth and Twentieth Dynasties (1292--1069 BC) is also known as the "Ramesside period". It is named after the eleven pharaohs that took the name of Ramesses.