1.
Ólafur the White is a king and he has a father who had a father who had a father who had a father who had a father. I counted.
Ólafur beats up the Dubliners and marries Auður Deep-minded. Whoa that lady pops up in every single saga, but then again she was important enough that once when she dropped a comb she had a whole nes named after it.
Anyway they make a baby Þorsteinn the Red and then Ólafur dies because the Irish don't let you beat them up indefinitely. Auður and Þorsteinn run for it, on the way Þorsteinn marries a Þuríður and they make a gazillion babies.
Then Þorsteinn takes over Scotland and when he's done with that the Scots hack him to pieces and absolutely no one is surprised. Auður makes a successful escape again and ends up in Iceland, you know the story.
There's a guy called Vífill that's a slave of Auður's but she sets him free and gives him lands. Remember this dude's sons Þorgeir and Þornjörn!