• North-Eastern Francia (?)

• Brittany (s. X)?
• Wales (s. X)?
• England (s. XI)
• Salisbury (s. XIV)

• Patristica
• Theology

• Augustine, Epistula 147, De videndo Deo (acephalous) (1r-19v)
• Ambrose, Epistula 14, Ad Vercellensem ecclesiam (20r-39r).

• Certainly not written in Brittany
• Possibly present at some stage in a Breton ecclesiastical centre

The shelfmark 'Bodley 516' comprises two distinct codicological units that were bound together at an early stage, probably in eleventh-century England, as shown by the presence of an Old English cryptogram in the second unit at fol. 63v (cf. Hall and Norris 2011: 163). At fol. 9r (belonging to the first unit) the plainly Brittonic word + guoroithon + (probably a personal name) was added in the top margin in insular script. This could be Welsh, Cornish, or Breton, raising the possibility that this MS resided in an ecclesiastical library in one of these countries before it reached England (so, in all likelihood, sometime during the tenth century). As has been pointed out by Hall and Norris (2011: 163–4, n. 13), guoroithon resembles the Welsh names Guruthon and Guruithon, recorded in three Llandaff charters. However, this is not sufficient to exclude a Breton or Cornish explanation for guoroithon. For example, this word could contain the Old Breton prefixing element guor- (cf. DGVB 198); as for the second element, cf. perhaps Old Breton gue(i)th, 'fight' (DGVB 189–90).

ASM 453–4 (§581); Elliot 2013: 107; Hall and Norris 2011: 161–4; MMOL.