Game of Thrones, Season 1

Renly Baratheon:
Lord Stark, a moment...Alone, if you will? [Eddard dismisses his guards] He [Robert] named you Protector of the Realm?

Eddard Stark:
He did.

Renly Baratheon:
She won't care. Give me an hour, and I can put a hundred swords at your command.

Eddard Stark:
And what should I do with a hundred swords?

Renly Baratheon:
Strike! Tonight, while the castle sleeps! We must get Joffrey away from his mother and into our custody; Protector of the Realm or no, he who holds the king holds the kingdom. Every moment you delay gives Cersei another moment to prepare; by the time Robert dies, it will be too late for the both of us!

Eddard Stark:
And what about Stannis?

Renly Baratheon:
[incredulous] Saving the Seven Kingdoms from Cersei and delivering them to Stannis?! You have odd notions about protecting the realm!

Eddard Stark:
Stannis is your older brother-

Renly Baratheon:
This isn't about the bloody line of succession! That didn't matter when you rebelled against the Mad King, it shouldn't matter now! What's best for the Kingdoms? What's best for the people we rule? We all know what Stannis is; he inspires no love or loyalty. He's not a king...I am.

Eddard Stark:
Stannis is a commander. He's led men into war twice, he destroyed the Greyjoy fleet-

Renly Baratheon:
Yes, he's a good soldier, everyone knows that; so was Robert! Tell me something, do you still believe good soldiers make good kings?

Eddard Stark:
I will not dishonour Robert's last hours by shedding blood in his halls and dragging frightened children from their beds.