Alexander Avengene

Lord  was the first-born son of Marquis Byron Avengene.

He was probably a senior commander and confidant for his father.

Family
He was the oldest son of Marquis, and in 725 was the heir-apparent to the title. His granddaughter, Lady Beatrice Avengene, was about 18 at the time, making his probably date of birth around 665.

Alexander had two sons, Lord Ryan Avengene and Lord Douglas Avengene; and two daughters, Lady Charlotte Avengene and Lady Leondra Avengene.