He is married to Ada of Hastings.
They got married
Child(ren):
file:///E:/E-S009/genealogy/Grab_A_Site_downloads/euweb/fife1.htm
John of Strathbogie, Earl of Atholl in right of his wife; son of David Strathbogie (3rd son of Duncan, Earl of Fife, Justiciar of Scotland, who granted David the lands of Strathbogie, one of five districts of Aberdeenshire). [Burke's Peerage]