Game of Thrones: The Last Dragons

Viserys Targaryen and Daenerys Targaryen in front of a light brown curtain

After the death of the king in Robert’s Rebellion, Prince Viserys Targaryen and his little sister, Princess Daenerys, fled across the Narrow Sea in exile. They hope to return to Westeros one day and reclaim their father’s throne.
From the television series, Game of Thrones, adapted from George R. R. Martin’s A Song of Ice and Fire novels

High School DxD: Crimson Rulers

Sirzechs Lucifer and Rias Gremory facing each other. He's wearing ceremonial armor, and she's in a formal party dress.

Sirzechs Lucifer, by his own words, is the devil king first and an older brother second, but it’s a close second. Meanwhile, Rias Gremory is the Princess of Ruin in the underworld and a top-ranking student at her high school, as well as the president of the Occult Research Club.
From the anime series High School DxD

Game of Thrones: The Ironborn

Yara Greyjoy and Theon Greyjoy glaring to one side

Yara Greyjoy (Asha Greyjoy in the books) and her little brother Theon
From the television series, Game of Thrones, adapted from George R. R. Martin’s A Song of Ice and Fire novels

Game of Thrones: Children of the Rose

Margaery and Loras Tyrell sitting and waiting

Scions of House Tyrell: Ser Loras and Margaery.
From the television series, Game of Thrones, adapted from George R. R. Martin’s A Song of Ice and Fire novels.

Don’t Mess with the Borgias

Cesare and Lucrezia Borgia

The dangerous and devoted Cesare and Lucrezia Borgia.
From the television series The Borgias

In honor of the Game Of Thrones season finale

Cersei and Jaime Lannister

The Lannister twins, Cersei and Jaime.
From the television series Game of Thrones adapted from George R. R. Martin’s A Song of Ice and Fire books.
Picture from Entertainment Weekly.