[1] Paragraphs are broken by similarly colored pilcrows and where the text breaks before the right margin, simple illustrated linear termini are provided.

[3] The other poetry, with no connection to this battle, includes, amongst others, "Peis Dinogat", a short poem for a child named Dinogad, in the form of a lullaby, describing how his father goes hunting and fishing.

[4] The literary scholar, Sir Ifor Williams, suggested that its incongruous presence within the Book of Aneirin might have been the result of it having been written in the margin of the original manuscript.

[4] Sir Ifor Williams proposed that the contents of the manuscript demonstrate that the Welsh language was spoken in northern parts of the British Isles.

[4] During the 15th century, the poet Dafydd Nanmor owned the manuscript, and it later passed into the hands of Robert Vaughan of Hengwrt, a well-known collector.