Seems like a poor copy of another but the name eludes me. Sort of the same premise with everyone taking credit while he supposedly had died but he went back to his home slowly those from his past trickled back to him, i.e hot girls.
Dude should have gathered up a huge crowd in the town square, announced he was still alive and that the princess had cheated on him and got pregnant while he was risking his life for the kingdom.
Get the info on who she cheated with and rat them both out to the public for all to hear. Let the aristocrats and royalty try sweep that under the rug.