Complex sentence: He himself painted a central niche, which he named "Head, Crowned with Laurels"; this latter was overpainted after the completion of the mural, and Charlot listed the mural as "destroyed" in catalogs of his work.
Split into simpler sentences: He himself painted a central niche, which he named "Head, Crowned with Laurels". This latter was overpainted after the completion of the mural, and Charlot listed the mural as destroyed in catalogs of his work.