Take the Trombone!

I have Gryffon hunt you down and kill you, bringing back the remains, which I rebuild into a throne of ash.

Therefore, I take "The throne"

An ancient ritual revives the oboes. The oboe bleats of war. War burns your "Throne" in half and splits your face.

Revealing that the OP has tricked you all and the real throne is the chair in front of LoH31's computer, I take the throne, carefully replacing it with a stunt double in case he notices its absence.

In the meantime, the throne chopped in half is found by a necromancer who revives me and I have Gryphon kill him and give me the chair. therefore

I still have the "Throne"

It turns out that everything since the OP was a dream.

I take the throne before anyone else wakes up.

I take the throne in the dream, giving the dream so much power that everyone on earth falls assleep.

I took the throne.

I am sleeping on the throne.

I am sleeping on the throne.

OOOOOOOOOHZZZZZ NOOOOOOZZZZZZ! TEH IMENZE PAWAHZZZZZZZ! TWOOOO THRONEZZZZZZ!

You notice you both were asleep sitting in your thrones unaware that your castles have been moved to a new unknown location where I now rule.

I, obviously, take the throne.

I burn your kingdom to the ground with hordes of hot male supermodels!
All that is left is the throne....

I take the throne!

I specialize in pyrotechnics. I burn throne, I rebuilt throne....

I take throne.

I travel back in time to when you were trying to burn the throne. I eat you and the throne.

I take the throne.

When the alchemist poisoned me I spilled some of the poison on the throne, which leaked out of the dream, poisoning you.

I take your remains which contain the throne.

I shoot you in the ear and steal the remains and run away!

I take the throne... and the remains of Moth Man... may he rest in pieces

I turn into a zombie plague and infect the body, killing you and making you my minion. I...

Now have the throne in my lifeless belly.

I go to the court for evil minions after not getting any benefits from you. I win and am no longer your minion. I then hire Frank West from Dead Rising to deal with you.
I then build a new throne...

and I take it!

Frank leaps at me holding a giant golf club, but I am one step ahead of him. I leap backwards each strike, doing a crouching backflip the final time, then leaping out and biting his throat off. He slowly dies of bleeding as I feast upon his flesh, until only his skeleton still walks. The throne is now fully digested, and I have to relieve myself, but instead I just tie a knot in my digestive track to stop it since I'm already dead. So...

I still have the REAL throne.

But your real throne has the plaque at the bottom stating "Not real throne. It is in another castle." I run to world 8 - level 4 and beat bowser, save the princess and TAKE THE REAL THRONE!

I specialize in pyrotechnics. I burn remains. Get out of remains. Steal throne from World 8-4, and leave the castle, and jump the flagpole.

Sadly you forgot to take the throne after you jumped the flagpole.

I took the throne back.

But as soon as you sit down in the throne, you see that a bird just took the cleveland browns to the superbowl on your car, and you go to clean it off.

I take the throne before you get back.