THIS IS A VERY COMPREHENSIVE ARTICLE FOR BERNARD-I; IT ACKNOWLEDGES BERNARD-I AS THE NEPHEW OF GUY-I DE BALLIOL; AND AS A SON OF RENARD DE BAILLEUL.
I COMMEND MEMBERS TO FOLLOW AN ARTICLE ON "Christina (Lindsay) de Guines de Coucy (abt.1265-aft.1320)".
She was apparently the daughter of Ada Balliol, who in turn was daughter of John-I and his wife Dervogilla de Galloway.
Then I suggest you follow Christine on a french website by aa apparently excellant genealogist by the name of Henri Frebault.
Christine de Balliol (de Lindsay), [daughter of Ada who married William de Lindsay]
See Christine on url: https://gw.geneanet.org/frebault?lang=en&pz=henri&nz=frebau....
I would love any feedback.
Cheers from Melbourne, Victoria, Australia,
rjb61858@gmail.com