Yes, Chaucer's and Carroll's meads are both sweet meads. They are both examples of "traditional" meads, made with nothing but honey, water, yeast and yeast nutrients. They finish at a final specific gravity of around 1.015 to 1.020, if memory serves. If you want to re-create something similar, take any of the traditional sweet mead recipes that you'll find from searching the forum, and you should be good to go. Don't do metheglins (which have spices added) or melomels (having fruit added), if you are after the traditional mead flavor profile. Also, make sure that you use the best quality (raw - unfiltered and unheated, if possible) honey that you can afford - it really will pay off in the flavor and aroma of your finished mead. If you can use honey from your own hives, so much the better, since it will be freshly extracted.