Complex sentence: The son of Seti, Ramesses the Great constructed a massive tomb, KV7, but it is in a ruinous state, and it is currently undergoing excavation and conservation by a Franco-Egyptian team led by Christian Leblanc.
Split into simpler sentences: The son of Seti, Ramesses the Great, constructed a massive tomb, KV7, but it is in a ruinous state. It is currently undergoing excavation and conservation by a Franco-Egyptian team led by Christian Leblanc.