Cyrillus Greengrass

Cyrillus Demetrius Greengrass (4 Mar 1675 - 19 Aug 1687) was a pure-blood wizard, the eldest son and 1st child of Lysander Greengrass VI and Evandra Greengrass (née Ollivander). He was the oldest of ten siblings, including Bryonia Abbott (née Greengrass), ancestor of the House of Abbott, Corinda Prewett (née Greengrass), Achilles Greengrass I, who would become their father’s heir after the latter's passing, and Antheia Malfoy (née Greengrass), ancestor of the modern members of the House of Malfoy. Cyrillus was the third of four of his siblings to die young.

Early life
Cyrillus was born the oldest of ten children on 4 Mar 1675 at the Greengrass Estate, to Lysander Greengrass II and Evandra Greengrass (née Ollivander). He was considered his father's heir. Cyrillus gained a younger sister, Bryonia ten months after his birth. Almost a year and a half after, his younger sister Corinda was born. He would gain seven more siblings in the span of eight years. Cyrillus especially looked after Bryonia and Corinda, and was quite close to the both of them.

Cyrillus attended Hogwarts School of Witchcraft and Wizardry and was sorted into Slyhterin House. The young heir only completed his first year, however.

Death
Cyrillus had fell ill due to the smallpox, a known affliction sometime in late July of 1687. A few days later, on 19 Aug of that same year, Cyrillus passed away. His sisters, Bryonia and Corinda, were eleven and nine, respectively. his family mourned his loss very deeply, especially his sisters. therefore, he died unmarried and without issue.

Post-mortem
His death prompted his father to make his eldest surviving son, Achilles, the heir of the House of Greengrass. Both Bryonia and Corinda started to be each others' confidantes and even shared a room together until each of them were married.

Etymology
Cyrillus is the Latinized form of Kyrillos meaning (Lordly, Masterful), which in turn is the Greek form of Cyril.

The surname Greengrass is of English topographical origins and would have denoted one who lived at a hamlet so named. The derivation is from the Old English pre 7th Century words ' grene, ' meaning 'green' and 'groes, ' meaning grass.