We are not supposed to speak badly of the newly dead, and there is nothing appropriate that could be said that wouldn't violate that rule.
Actually, there is. He brought the Spanish right into the democracy. It is still a deeply flawed right, but it does operate within the limits and rules of the Constitution, at the creation of which Fraga himself attended. Whatever else he did in his life - and most of it, indeed, is probably not appropriate to be mentioned on this day - this is something, for which one may not merely respect him, but even express a token of gratitude.