I don't remember learning anything about him other than his name and that he was the first King of the Anglo-Saxons. You'd really think they'd tell us more about him, he seemed pretty cool and very relevant to English history.
I grew up in Somerset, and didn't even know that he hid from Danish invaders in the Somerset levels until I watched The Last Kingdom. That could have been a dope school trip.
I have only read the first few, but those Saxon Story books were enjoyable.