Versions of the text survive in four manuscripts from the 14th century: (1) the mid-14th century White Book of Rhydderch or Aberystwyth, NLW, MS Peniarth 4; (2) MS Peniarth 7, which dates from the beginning of the century, or earlier, and lacks the beginning of the text; (3) MS Peniarth 14, a fragment from the 2nd quarter of the 14th century, and (4) the Red Book of Hergest, from the end of the same century. The texts found in the White Book of Rhydderch and Red Book of Hergest represent the longest version. They are generally in close agreement and most of their differences are concentrated in the first part of the text, before the love-story of Angharad.