On Wednesday, June 29, 2016 at 8:30:31 PM UTC-7, Peter Stewart via wrote: > Philippe Zalmen Ben-Nathan in *Annales du Midi* 114 (2002) cogently > proposed that the brothers Bertrand I and Sicard VI of Lautrec were > actually sons of Frotard III, . . . > http://www.persee.fr/doc/anami_0003-4398_2002_num_114_239_2777. Thanks for this - I was unaware that Persee has almost the entire run of Annales de Midi available. (For those unfamiliar with it, there have been numerous influential genealogical studies in this periodical over the course of its 100+ years of publication - although the first one I lit upon, working backwards, has a blatant error in its concluding chart, giving Raymond I of Ribagorza and Pallars two wives that he did not marry: one married his son, the other was invented by Levi Provencal through the misdating of a reference to brothers-in-law in an Al-Andalus chronicle.) taf