I have now waded through this book in some detail, and I thought that it would be useful to describe the contents and discuss how the book might be used. The Welsh genealogies were composed over a period of many centuries, appearing in many different manuscripts based on a variety of sources, including earlier manuscripts, many of which are now lost. Making the most informed use of these sources requires that we know as much as possible about when these genealogies were originally composed, and that we reconstruct earlier versions of these genealogies to the extent that this is possible, by comparing similar surviving manuscripts which were copied from the same sources. Doing such studies requires that critical editions of the most important manuscripts (and related manuscript groups) be available.
Prior to the present work of Ben Guy, the most comprehensive edition of early Welsh genealogical texts was Peter Bartrum's "Early Welsh Genealogical Tracts" (EWGT) (Cardiff, 1966), which gave transcripts of most of the earliest surviving Welsh manuscript genealogies. In addition, Bartrum edited material from a number of later manuscripts alleging to give information about early medieval Welsh leaders, many of which appeared in the "National Library of Wales Journal" (NLWJ) (principally volumes 12-18, 1962-1973). The most important of these was "Pedigrees of the Welsh Tribal Patriarchs" in NLWJ 13 (1963-4), 93-146; 15 (1967-8), 157-166. However, the form in which Bartrum edited this later genealogical material consisted of taking excerpts from various manuscripts giving the genealogies of each so-called patriarch, making it difficult to see the interrelationships between the various manuscript traditions. Of course, many amateur genealogists know the work of Peter Bartrum through his massive "Welsh Genealogies, AD 300-1400" (WG) (8 vols., Cardiff, 1974), which sets out the main contents of the early Welsh genealogical manuscripts in table form, often obscuring the conflicts between the sources. Novices often make the mistake of considering WG to be the gospel source on early Welsh genealogy, completely missing the point that it was only intended to be a guide to what the genealogical manuscripts claim. Those who use WG often overlook one of its most valuable features: the index, which identifies the original manuscript sources for each individual in the tables. Although extremely useful, this information in Bartrum's index appears in an awkward form which makes source comparison difficult.
In Ben Guy's "Medieval Welsh Genealogy" (MWG), we have the most comprehensive textual history of the early Welsh genealogical manuscripts yet attempted, with detailed critical editions of many of the most important manuscripts, and numerous table comparing the readings of various manuscripts, as a supplement supporting his conclusions. Guy identifies three major recensions which include the bulk of the early Welsh genealogies, plus a fourth which is an offshoot of one of the other three. These are 1. The St. David's Recension, mainly witnessed by Harley 3859; 2. The Jesus College genealogies; 3. The Llywelyn ap Iorwerth genealogies; and 4. The Gutun Owain recension of the Llywelyn ap Iorwerth genealogies.
1. The St. David's recension.
This is mainly represented by the well-known genealogies contained in Harley 3859 (i.e., British Library, Harleian MS 3859), contained in a manuscript of ca. 1100, apparently copied directly by an Anglo-Norman scribe who did not know Welsh from a southern Welsh exemplar of not long after 954. In addition, scattered other sources contain genealogies which can be identified as belonging to this tradition. Guy's edition is based mainly on Harley 3859, occasionally using one of the other sources when it apparently gives a better reading, with all variant reading given in footnotes. Although the text itself can be dated to the middle of the ninth century in South Wales, comparison with other recension suggests that much of the material in the St. David's recension was composed in North Wales late in the reign of Rhodi Mawr (d. 878), and later updated for the benefit of his great-grandson Owain ap Hywel Dda ca. 954.
2. The Jesus College Genealogies.
These appear in Oxford, Jesus College MS 20 (thirteenth or fourteenth cemtury), another well known early Welsh genealogical manuscript. Guy corrects contained errors contained in earlier published editions of this manuscript, and also has detailed footnotes explaining readings where the manuscript is difficult to read. The genealogies appear to have been composed in the reign of Llywelyn ap Iorwerth (d. 1240). The complicated textual history is discussed in detail. It appears to be based on two main sources, one related to #1, and one related to #3.
3. The Llywelyn ap Iorwerth Genealogies.
This is Guy's name for a recension of the genealogies, many of which have been edited before (for example, in Bartrum's EWGT), but often separately in a way that did not identify the group of genealogies as belonging to a particular recension. This recension was apparently composed in the middle of the thirteenth century, and is related to the genealogical tradition found in Life of Gruffudd ap Cynan, in which the accidental removal of Merfyn Frych in an ancestral manuscript caused a tradition which significantly altered the immediate ancestry of Rhodri Mawr.
4. The Gutun Owain recension of the Llywelyn ap Iorwerth genealogies.
This offshoot of #3 was compiled in the middle of the fifteenth century, and was a very influential source for the late medieval and early modern Welsh genealogies.
Anyone expecting an easy read is going to be very disappointed. Any novices who approach this book should be warned that a considerable amount of additional reading is going to be required in order to fully appreciate the significance of the discussions there. Rather than providing definitive answers to specific questions in early Welsh genealogy, this work provides a comprehensive beginning from which the manuscript traditions can be more easily sifted for information which could either confirm or deny various pedigrees, or determine which of two conflicting versions is more reliable. I would regard this book as essential for anyone who wants to do really serious research in the primary sources for early Welsh genealogy.
Stewart Baldwin