one source says 1225 and other says 1176 so that is unsure.

I got my information as follows

article on this website notebook but says its naughty so it won't let me link it

in this one it shows that Godred says his foster brother is Gillocrist, all in 1700's

look up Mrs Beth Anne Christain Layland - Family legacy site i tried to include but this said it was naughty.
choose on her site Christian I and then William Christian I (illiam Dhone) then click on the Ancestor Pedigree chart

let me know if i can help you more I have more that confirms all this also