といえども

といえども is a formal, literary way to express a contrast between what might be expected and what follows. It is stronger and more restrained than the everyday けれども/ although, often used in written Japanese, speeches, or formal arguments. It emphasizes that despite the preceding statement, the subsequent situation holds true. It can apply to people, situations, facts, or general observations, and is commonly used to present a concession before making a point or asserting a result.