House Of The Dragon: What Is The Real Difference Between The Green & Black Trailers?

So why exactly are Rhaenyra and Alicent’s opposing sides known as the Green and Black factions? It honestly has far more to do with fashion than you might expect. In “House of the Dragon” Season 1, when Rhaenyra — played at that point by Milly Alcock — embarks upon her first marriage to Laenor Velaryon (Theo Nate), a young Alicent (Emily Carey) appears at the wedding reception clad in a striking green dress. That color is extremely important to Hightower lore, and the hue is a clear message to Rhaenyra, Alicent’s confidante-turned-rival: The Hightowers are ready to go to war. It’s the literal color of the beacon in the family’s home of Oldtown that’s lit when war is imminent and the town needs to take up arms.

The Black army that rallies behind Rhaenyra is named as such because she and her second husband (and uncle) Daemon Targaryen (Matt Smith) simply … wear a lot of black clothing. Plus, the banner representing Rhaenyra and her ilk features a red dragon against a black background. Ultimately, in this fight between family members, colors are the only thing to signify where your loyalties lie — hence the green and black labels.