Roberts* notes that the Llyfr Gwyn Rhydderch ("White Book of Rhydderch", c.1325 C.E. : see Other Works) suggests, without listing them, that there are 33 major cities, and 34 major marvels in Britain, while the Llyfr Coch Hergest ("Red Book of Hergest", c.1400 C.E. : see Other Works) lists 32 cities, and, according to Roberts, names 27 of a claimed 34 marvels.