Isabel nic Uilliam (of Scotland) - is this the same woman?

anyone know?

I was on the verge of saying they were the smart until I read the profile 'about me:
Which listed five other Isabel's that get confused of which this was one:-

- Isabel Princess of Scotland, daughter of William I and his wife Ermengard; married Roger de Bigod, 4th Earl of Norfolk. Half sisters.

http://www.geneajourney.com/hntgdn.html#isascot

*same not smart

ok ty :)

@Isabel of Scotlandis my 25th grt Aunt Judy Rice

Isabella of Scotland, Countess of Norfolk is your 26th great grandmother.