The "Miscellaneous poems" consist first of those in the Black Book of Caermarthen, and are placed in three groups. Under letter Q are placed five poems attributed to other bards-Meigant, Cuhelyn, and Elaeth. Under letter R ten anonymous poems on religious subjects; and under letter S two poems, which seem connected, and the first of which is the curious poem relating to Yscolan.

There is only one poem in the Book of Aneurin, the Gorchan Adebon, which is not historical. It is placed under letter T.

The "Miscellaneous poems" from the Book of Taliessin are placed under three groups. Under letter U are twelve poems, containing allusions to the personal history of Taliessin, or expressing his opinions on philosophy or religion. Under letter V four poems, containing allusions to the history of the Israelites. Under letter W two poems, relating to the legends connected with Alexander the Great.

The "Miscellaneous poems" from the Red Book of Hergest consist of three groups-one, under letter X, of seven poems attributed to Llywarch Hen, which are not historical; under letter Y, of two poems, beginning Eiry Mynyd, one of which is called the Colloquy of Llywelyn and Gwrnerth; and under letter Z, of two other anonymous poems, the last of which is termed the Viaticum of Llevoed Wynebglawr.