Physical Description: Eirene is placed at a slightly below-average height of 140 cm and she weighs around 38 kilograms. She has a crown of dark coils and caramel-brown skin. She prefers to wear pleated skirts and thick sweaters.

Mental Description: Eirene has always been a perfectionist with her mother's backing and her father's money she has always had time to finish everything to perfection. From moving her pens around until they were of equal length to each other to rewriting her name until it had the right amount of curve. However, she has a hard time focusing and is easily drained which irritates her. This attitude drives her to work hard leaving her unable to take failure. She loves everything that comes with music and can be caught listening to some songs when studying or roller skating. She hates liars and believes in always telling the truth although she hasn't learned that 'honesty without kindness is just cruelty' yet. Although not much of a mathematics person Harriet adores languages and culture, primarily the musical aspect.

Biography: The Tilburys were old money one of the most prestigious families in the United States. Their grandfather had built their company off the oil rig which had launched their family into wealth. Yes, William Tilbury was born into a traditional family deeply engrained with their values, his sisters had been debutants and had learned to sew and dance while he alone was raised to take on the family business always a step higher than his sisters. And to be frank he also believed this about himself and the other people around him. Trained and groomed to become one of the best generations in the Noltons he eventually decided that the South was getting boring and headed to the University of Cambridge to further his education.

During this time a pureblood family was going through significant turmoil. Their matriarch (great-grandmother) had recently passed and during this time there was a struggle for power especially with her two grandsons, Maxwell and Thomas Ashworth. Although Thomas Ashworth had a significant claim Maxwell was determined to pick fights with him and remain a thorn in his side. But Maxwell had a plan. He only had one child, a squid useless at magic but perfect for following his orders. Maxwell had raised her to be obedient to him and with magic still flowing through her veins she would make the perfect housewife for a pureblooded gentleman. After months of planning and discussing he was finally able to secure a marriage with the Sanori family who wanted to pair their youngest son with a nice pureblood girl.

The pair were married in the summer which to Natalie had felt like a dream. She had always imagined she would grow old and live in her father's manor to high status to work a manual job but too low ranking to perform any high ranking ones. Now at the age of 20, she would be married and wed to a notorious womanizer Earl Scapelli. During the marriage, she had one child who she named Lucas before deciding she wanted out of this marriage. She had little to no contact with her son and from the way the servants acted it would seem like she never would. With the support of her maid, Cecilia, Natalie divorced Earl losing custody of her son and being disowned by her family in the process. Natalie went to the Muggle world to live with Cecilia's muggle aunt who helped her grow accustomed to muggle life which she found quite endearing. She found work in the Aunt's flower shop where she spent most of her time, occasionally enjoying her newfound freedom and touring around the Muggle world. It was there that she met William.

After much struggle the two eventually fell in love changing Willaim for the better. Natalie confessed her heritage to William however without the ability to back it up it fell on deaf ears and William assumed she was telling a childhood dream. The pair married although there was plenty of pushback from the Tilbury's but Willaim decided to ignore their concerns and threats of disownment since he was already well accomplished. They had their firstborn well into their first year of marriage named Eunomia by the time she had arrived the couple had decided to stay and plant their roots in England. Their second child who was born 2 years later, a male who was named Endymion and then dubbed heir since birth. It wasn't until Eunomia, named after one of the Horea, had her first magical instance that William began to believe in the existence of the wizarding world. 2 years after Endymion, they welcomed their third and last child Eirene.

Eirene was raised in a warm and welcoming environment although she saw her mother much more than her father. However, her father still held onto his traditional values with the standards that he had set for his daughters there was little to no pressure put on her to succeed instead he pushed them towards dancing or needlework. He focused a lot of his time and attention towards his only son giving him the exact same upbringing he had received and causing a rift between Endymion and his sisters. Not much for being an academic warrior like her older siblings Eirene did enjoy having good grades as it meant a new purse or pair of shoes before her next allowance came in. Although not academically inclined she was rather fond of music, she could be found in her private music room playing multiple instruments from flutes to pianos. Her obsession with keeping her objects clean led the her perfection complex, every medal was got to every shoe was polished to perfection. She was taught at home by a governess until she turned 6, and then she was sent to a private academy before ultimately receiving the Hogwarts acceptance letter. The small family didn't have much contact with the father's side besides business and the annual family gathering.

After the eldest daughter had gone to Hogwarts the family began to form rifts. Eunomia had begun to challenge her father's thinking left and right often leading to large arguments. When Eunomia had informed her family she wanted to pursue politics and law in the Wizarding world, she had come to love it more than the Muggle world. When it was Endymion's turn to leave he hadn't come back after the first year was over, which Eirene suspected he wanted to avoid their father. Eunomia still kept in contact with her mother and younger sister writing to them about her recent studies and exams. When Eirene turned 11 Eunomia decided to return for the summer in order to help ready her little sister for the journey to Hogwarts. Eirene was excited to reunite with her sister and finally see the world that had led her siblings astray.

First Instance of Magic: When she was 7 during one of her family's routine Sunday dinners, her mother had misplaced the vase on the table center. As she stared at it she also noticed how the painting to her left was also slightly off combined with her sibling's misplaced utensils these details began to annoy her. Irritated in what seemed like a coincidence the vase slid across the table into place, the painting corrected itself, and the utensils slid back into perfection. However, after 30 minutes her family's utensils eventually returned to their previous state much to Eirene's frustration.