[Southerngl]

Is that same lover who got throw through window by Edward II father Edward I in Braveheart

No, this man came later and was much more involved in deals and came along after Edward I died. But he was a ruthless bastard who screwed over most everyone around him.

[Publius]

I believe the lover who was tossed out the window was Piers Gaveston.

[MrEdd]

Is that same lover who got throw through window by Edward II father Edward I in Braveheart

I'm pretty sure the window throwing story came from this