Hello!!
I'm a Donate descendant (my grandmother's first surname is Donate) and we are from Gran Canaria (Canary Islands), although I know her family came from Tenerife.
I'd love to learn more about the history of the surname and my ancestors, so although I know your post it's pretty old and that you probably won't get my answer, I'd like to get in touch with you.
Who knows? We might be related ;)
Patricia Socorro