Complex sentence: The Holy Roman Emperor, Frederick II, Raymond VII of Toulouse and other neighboring rulers proposed themselves or their sons to Beatrice of Provancee, but her mother put the county under the protection of the Holy See.
Split into simpler sentences: The Holy Roman Emperor, Frederick II, Raymond VII of Toulouse and other neighboring rulers proposed themselves or their sons to Beatrice of Provence. Her mother put the county under the protection of the Holy See.