Lorian and Lothric

"Oh, dear. Another dogged contender... Welcome, unkindled one. Purloiner of cinders. Mind you, the mantle of Lord interests me none. The Firelinking curse, the legacy of Lords -- let it all fade into nothing. You've done quite enough, now have your rest."

- Prince Lothric to the Ashen One

The Twin Princes, composed by Lorian, Elder Prince and Lothric, Younger Prince, are the main antagonists of Dark Souls III. They are the final of the five Lords of Cinder encountered by the Ashen One. Their abandonment of their Lord of Cinder's duty had driven the plot of the game.

Lothric is voiced by Harry Lister Smith, who also voiced Dark Sun Gwyndolin from Dark Souls. Lorian remained mute for his entire appearance.

Dark Souls III
Lothric and Lorian (along with Ocelotte) are the sons of King Oceiros and the queen of Lothric. Lothric was designated at birth to be the one to Link the Flame, but he grew to resent his role due to everyone knowing that he would be the one to do it and thus never being allowed any sort of choice or say in the matter.

This eventually caused Lothric to become disillusioned and misanthropic to the whole affair, to the point where he decides to just let the Age of Dark come, rather than submit himself and his brother to the Flame. As a result, they abandoned their post. Ludleth of Courland became the only one willing to lend his remaining strength to the flame, with Yhorm the Giant, Aldrich and the Abyss Watchers all forsook the flame for various reasons.

The Twin Princes' abandonment of their duty had caused fatal consequences, with their kingdom consumed by war after they barricaded themselves. Because of the curse he bore, Lothric has been bed-ridden his entire life and can barely move on his own, and Lorian was rendered mute, crippled and probably severely brain damaged after embracing Lothric's curse.

The Twin Princes eventually met their end at the hands of the Ashen One when he arrived in the throne room. The Ashen One fought Lorian first and later both of the Princes when Lothric joined the battle. When the Twin Princes perished, Lothric spent his last moments warning the Ashen One that he remained among the accursed.