Complex sentence: The ceiling in the library is in a neo-classical style, resembling the work of the Scottish architect and interior decorator Robert Adam, who on his turn was inspired by the Domus Aurea in Rome and the palace of Diocletian in Split.
Split into simpler sentences: The ceiling in the library is in a neo-classical style, resembling the work of the Scottish architect and interior decorator Robert Adam. He was inspired by the Domus Aurea in Rome and the palace of Diocletian in Split.