Complex sentence: The author is unknown, but was a servant of the queen and was probably a Fleming, the most likely candidates being Goscelin and Folcard, monks of St Bertin Abbey in St Omer.
Split into simpler sentences: The author is unknown, but was a servant of the queen and was probably a Fleming. The most likely candidates are Goscelin and Folcard, monks of St Bertin Abbey in St Omer.