Tristan Rosier

Tristan Alexis Rosier (b. 16 April, 1927) was an English pure-blood wizard. He was the eldest child and only son of Alexios Rosier, older brother of Druella Black, husband of Helena Rosier, father of Adrienne and Evan Rosier, and the grandfather of Verity Rosier. He attended Hogwarts School of Witchcraft and Wizardry from 1938-1945 and was sorted into Slytherin.

Despite being one of the original Death Eaters, Tristan was never big on blood purity in the sense that he thought pure-bloods were superior to half-bloods or muggle-borns, though Tristan has said in the past that he'd rather his children marry another pure-blood.

Early life (1927–1938)
Ariadne Sophia Bonacolsi was born on 19 August, 1960, to Aloisio and Raphaela Bonacolsi. Her older brother Tiberius was born sometime in 1956.

Ariadne spent the first thirteen years of her life in Italy and sometimes France. She spent a lot of time with her cousins Rodolphus and Rabastan despite living in different countries.

Hogwarts years (1938–1945)
Ariadne was privately sorted into Ravenclaw house in the Headmaster's office on 1 September, 1973 at Hogwarts School of Witchcraft and Wizardry.