Lily Potter had two parents without any magical ability—i.e., Muggles. Lily's sister, Petunia, does not have the ability either. Hermione is one of Harry's best friends and is a powerful witch. She has parents who are Muggles, meaning they do not possess magical ability.
Petunia is definitely a muggle. Had she had any magic in her, she would have been accepted to Hogwarts. Her remembering what was told to her about the magical world isn't a sign of magical abilities; it's just a sign of having memories.
Petunia didn't just keep her magical aspirations to herself, she actually asked Albus Dumbledore if she could join Hogwarts. Unfortunately, as she had no magical ability, the kindly headmaster had to gently rebuff her.
Lily had two copies of the magical ability while Petunia did not have any (just the same as Lily having red hair while Petunia was brunette). Muggle born like Lily and Hermione are descendants of Squibs ( people who lack magic even when born to atleast one magical parent ).
When Lily was admitted to Hogwarts, Petunia secretly wrote to Professor Dumbledore begging him to let her attend as well. After being kindly rejected by him, Petunia began calling wizards and witches "weirdos" and denied the existence of her sister as much as possible.
If Petunia was the family witch and Lily wasn't either Harry would not exist or he wouldn't be a Potter. If they both were there is a chance that Dumbledore would have found an excuse to not send Harry to her and have him grow up still in the muggle world.
In Harry Potter and the Deathly Hallows, Harry observed a memory that revealed that Petunia's biggest secret was that she had once been desperate to go with her sister to Hogwarts. She felt rejected by the wizarding world and therefore resented it, and that only grew worse when Lily was killed.
Lily being a witch and having the ability to use magic is the root cause of their strife, and while it started as jealousy from Petunia, in the end, she was right to distance herself from her magical sister.
The two children of Dudley Dursley and his wife were Muggles. They were occasionally visited by their magical second cousins, the two sons and daughter of their father's cousin Harry Potter. It is unknown whether they knew of their cousins' magical heritage.
Dudley found it in Aunt Petunia's belongings after she passed away and sent it to Harry. This insinuates that Petunia held onto it for years, in spite of her resentment toward the Wizarding World and Harry, because it was another piece of Lily.
Dear Petunia, It is with great sadness that I must inform you of the death of your sister and her husband. They were murdered by a Dark wizard known as Lord Voldemort, whose cruelty and violence they had been fighting for years. I tried my best to protect them, but, alas, I regret to say that I failed.
After Lily got her acceptance letter, Petunia wrote to Professor Dumbledore, asking if she could attend Hogwarts as well. Dumbledore wrote back, explaining kindly that she couldn't, as it was a school to learn magic and she unfortunately didn't have magical ability at all.
This Howler was written by Albus Dumbledore to Petunia Dursley on 2 August 1995, to remind her "of the pact she had sealed by taking Harry Potter" into her home. This Howler ensured Harry Potter continued to reside at the Dursley residence.
Petunia learned that Lily died by a note and a baby on her doorstep. How incredibly cruel of Dumbledore. The sisters may have been estranged, but they were still sisters. Dumbledore also dumped a baby on her without asking if it was okay, and then seemed to blackmail her into keeping Harry.
While Vernon consistently praised his son as if he was extremely masculine and robust, Petunia infantilised Dudley, calling him "Diddykins" well in to his teen years, appearing heartbroken to have to put Dudley on a much-needed diet and even bursting into tears when Dudley showed marginal affection for Harry.
How did Aunt Petunia know what dementors were? Petunia was spying on Lily And Snape when they were children and Severus was explaining about Magical law and Dementors. In Book 5 Uncle Vernon asks what Dementors are. “They guard the Wizard prison, Azkaban” said Aunt Petunia.
Did Petunia know about dementors from James or Snape? In The Order of the Phoenix, when Vernon asks Harry what dementors are, it is Petunia who answers. She explains that she "heard him telling her once," the implication being, of course, that she overheard a conversation between James and Lily.
Throughout the Harry Potter series, the Dursley family tortured Harry without end. So, while a little more justice could've been done, Rowling settled on the perfect ending. Harry leaves Aunt Petunia and Uncle Vernon on a cold note, which is to be expected after all the abuse he endured at their hands.
When is Lily Potter's birthday? Lily J. Potter, Harry Potter's mother, was born on 30th January 1960. This made her 21 years old when she was killed by Voldemort on 31st October 1981.
Dudley went on to get married and have two Muggle children of his own, who occasionally saw Harry's children. While the cousins remained in touch, it seems that Harry never got to see his Uncle and Aunt ever again. Harry Potter and the Cursed Child revealed that Petunia died due to unknown reasons sometime before 2020.
We don't know how old Vernon is, but Petunia is about two years older than Lily (who was born on 30th January 1960) - young enough that she's playing on the swings with Lily when Lily is 9, and that she hopes she can be admitted to Hogwarts when Lily is 11, but old enough that Harry can see she is older when he looks ...
Loyalty. Lily Evans (30 January, 1960–31 October, 1981) was an English Muggle-born witch, a daughter of Mr. and Mrs Evans, the younger sister of Petunia Evans.
Hagrid appears at the hut and gives Harry his letter in person, leading Petunia to admit she knew Harry was a wizard and that she and Vernon had sworn to stamp the magic out of Harry when they took him in. She claims that her sister's (Harry's mother's) magical abilities made her a freak.
Lily Potter was a talented Muggle-born witch, and the first in her family to go to Hogwarts - something that inspired great jealousy in her sister, Petunia. Sorted into Gryffindor along with James, after leaving school they married and had a son, Harry, who had his mother's eyes.
