October 1867: Olixander is born in Barcelona, Spain* the first son and heir to… the second Blackwood son, Cillian and his wife Sibyl. He’s nobody’s great wish except his mother’s but that doesn’t stop Papa Blackwood from appreciating a healthy son. To the extent he cares enough to appreciate anything.
*On a holiday tour visiting Sybl's family. It was a big to-do for the first son to be born outside of England.
Christmas, 1868: First signs of magic show early in the young boy. In a fit of hunger, Olixander manages to explode a glass bottle in the nurse’s hand. The milk inside is boiling hot and scalds the woman, leaving a nasty scar.
1870 - 1878: Throughout his childhood, Olixander is rambunctious and troublesome, always causing mischief. He has sticky fingers and likes to take things that don’t belong to him. He picks up languages rather quickly in his studies and learns Latin, French and German, dabbling on his own in Spanish. He’s able to pick up quite a bit from letters and conversations he hears his mother have with his grandmother who lives overseas and eventually his mother takes to teaching him formally. (Olixander is currently fluent in Spanish, French, and Latin. He didn't care for German as much but has a working understanding of the language.) In 1870, his first brother is born, soon to be followed by another in 1876. Olixander doesn’t pay either of them much mind, and plays only just with Theo for the first few years before losing interest. He and Valentine never quite manage to hit it off as brothers should.
1879 - 1880: In September of ’79, Olixander heads to Hogwarts. He’s relieved to be out of the house as being one of three boys has become a lot like being part of a pack rather than an individual. He is sorted almost immediately into Slytherin, and takes his seat with pride. He’s a bit of a bully, especially to the muggleborn students, but his hatred of them stems more from his own father’s prejudice than his own experience.
1880 - 1881: In the fall of Olixander’s second year another child is born, this time a sister. She’s smaller than the adults expected apparently, and Olixander is facinated with her when he comes home for the holidays. He spends much of his time escaping his brothers by sitting in Meida’s room reading to her. Her first word later that year is “Oli.” Also in his second year, Olixander tries out for the Slytherin Quidditch team and makes it as a chaser.
1881 - 1884: Olixander’s third, fourth, and fifth years see him succeeding in his OWLs. Nothing much remarkable happens, other than he discovers his childhood penchant for sticky fingers is enough to earn him some fun goodies from students who are careless. He devotes himself fully to quidditch practices and manages to become one of the best players of his year/s. Sometime in his fifth year, Cilian Blackwood introduces his son to the Knights of Walpurgis and Olixander joins the cause. His bullying of muggleborns increases ten-fold, and it’s no secret he’s a blood purist.
1884 - 1886: In his sixth and seventh years, Olixander decides to route his focus into specifically DADA and Alchemy. He takes a handful of other classes, but these become his main focus. He works obsessively at becoming a practiced legilimens and he achieves the goal somewhere between sixth and seventh years. He continues as Slytherin chaser, by this point the best of the three on his (or really any) of the house teams and takes the role of captain. He graduates with honors and mostly, has managed to keep out of trouble.
1886-present:
In the years since Olixander graduated Hogwarts, he’s managed to accomplish little compared to his schooling efforts. His practice at legilimens has continued to exceed, and he plays quidditch recreationally with friends but he hasn’t made any particular name for himself. His mother expects he is on the lookout for a wife, but in all truth, Olixander prefers to flirt with no real intention in mind. He’s slightly aimless, always on the lookout for something new to get into, and sometimes he wonders what his purpose in life really is. He made a tour of the continent some time ago and has considered doing that again, just to pass the time.