Players can meet D’s Brother in Elden Ring and had the option to give him the Twin Armor. He will obviously seek revenge, but players wonder if giving him the armor will disqualify them from Fia’s quest. Fortunately, we have found a way to accomplish both tasks.
Does giving armor to D’s Brother end Fia’s quest in the Elden Ring?
Giving D’s Brother the Elden Ring armor does not disqualify the player from Fia’s quest. Fortunately, the player can wait until Fia spawns Death-Prince’s Mending Rune at the end of the mission before talking to D’s Brother.
D, Beholder of Death can be found in Nokron, the Eternal City located on the balcony. If the player interacts with him, they will have the option to give him the D-drop Hunter of the Dead Twin Armor. There are two different branches the quest can take from here. If Fia kills D during the Roundtable, D’s Brother will avenge her. However, the player has a chance to kill him when they first encounter him near Summonwater Village. If this happens, the player can meet and fight him if they reload the area.
While D’s Brother felt she would get her revenge by stabbing Fia, it appears she died giving birth to Death-Prince’s Mending Rune. So we’re not sure what his point is. He seems a bit careless, so who knows what’s going on in his head. That was the last time we saw him. It heavily implies that he intended to die after that act and join his brother. Fortunately, if the player reloads the Throne of the Death-Prince, they will find the Twin Armor and Sword inseparable.
It’s implied that there’s something out of the ordinary about the two brothers, but we’re not sure what that is. The description for the sword says:
“The sword is forged by combining silver and gold.
A sacred weapon to hunt those who live in the dead.
Deals holy damage.
The inseparable twins found solace in the Golden Order,
the only institution that doesn’t revive them as accursed creatures. “
They don’t seem to be damned, but maybe we’re missing something.
https://www.gamerevolution.com/guides/703791-elden-ring-will-give-ds-brother-armor-lock-fia-questline Elden Ring: Will D’s brother armor lock me out of Fia’s quest?