Septimus Heap by Angie Sage

Another wizard type series that is compared to Harry Potter, however, it is not similar to Harry Potter in any way other than having wizards. Septimus was taken as a child and thrown in the Young Army without any knowledge of who his parents are. At the same time the Princess is taken from the castle and given to Septimus's family to be raised at their own. Septimus and his friends/family at one point are sent to the past, find a Dragon boat, and are sent on a Queste (which every wizard sent on has always died in). Of course Septimus breaks this trend and actually completes his Queste. There's still a few books left so we'll have to see what else Septimus and his friends/family find themselves doing.