Question: are dimitri and edelgard related?
Answer: Dimitri is the crown prince of the Holy Kingdom of Faerghus. In Imperial Year 1171, Dimitri's maternal stepsister Princess Edelgard of the Adrestian Empire came to Faerghus with her uncle, Lord Arundel, and the two became fast friends. When she returned to the Empire in 1174, he gave her a dagger as a parting gift.