Margaret Stewart, of Blackhall & Ardgowan

From http://fmg.ac/Projects/MedLands/SCOTLAND.htm#_Toc389122947

JOHN Stewart of Ardgowan and Blackhall & his wife had ___ children:

a)         MARGARET Stewart (-after Aug 1442).  Her marriage is confirmed by the charter dated 12 Mar 1440 under which her grandson "Sir Duncan le Cambel knight Lord of Lochawe" donated alms from "his lands of Ardenaslate" to the church of Dunovyng [Dunoon], for the souls of "his grandfather Celestin Cambel and Isabella Lamont [Laigmani] his lawful wife…Colin Cambel his father and Mariote filie M’Cwill Cambel matris quondam nostre…his late wife Marcellina Stewart and Margaret Stewart his present wife"[1263].  m (before 12 Mar 1440) as his second wife, DUNCAN Campbell of Lochow, son of COLIN Campbell of Lochow, Argyllshire & his wife Mariot Campbell (-1453, bur Kilmun).  He was created Lord Campbell in 1445.