They are from different families. Though Queenie might be related to Anthony Goldstein. Yeah, there are some similarities between them like they both were half blood and what u said but they are not related in any way. Also, Queenie was a naturally born legillimen while Snape had acquired that skill.
J.K. Rowling hinted that the characters belonged to the same family in a tweet, which read: 'Well, I think it's widely known that that characters of (Porpen)tina and Queenie are sisters, but not that their surname is Goldstein.
Quentin Kowalski may be a descendant of Jacob and Queenie Goldstein, though this would breach Rappaport's Law. Queenie and Jacob would need to have left the United States of America to marry as to protect Queenie from prosecution.
Severus' lineage on his mother's side was Irish. His maternal grandparents, Muireann Prince and her husband, Roderick, were overjoyed when their daughter had a son. His middle name, Gaeilge for 'Dark Warrior,' was gifted at birth by Roderick when he held him for the first time.
Queenie is Snape's Grandmother?! feat. Seamus Gorman [Harry Potter Theory]
Who are Snape's children?
↑ Severus died in 1998 without marrying nor having children, and his parents' fates are unknown. Aside from that, it's likely that his parents never had any other son or daughter as it's never mentioned if Severus had a brother or a sister.
Family members. Jacob Kowalski — an American No-Maj former factory worker and baker who befriended Newt Scamander. Jan Kowalski — a Polish nobleman. Mr Kowalski — brother of Jacob; killed in the First World War.
The couple had at least one child, through whom they had a grandson, Rolf Scamander, who married Luna Lovegood, and through whom Tina and Newt had two known great-grandsons, Lorcan and Lysander.
Queenie is not Voldemort's mother. Voldemort's mother is Merope Gaunt, a British Pureblood witch who can trace her ancestry back to Slytherin and the Peverall brothers, specifically, the 2nd brother who had the Resurrection stone.
Queenie's baby. Scandalously, the father is Michael Roberts, not Bernard, and the baby is black. Queenie gives up baby Michael to Hortense and Gilbert so the baby can have a more stable, normal life.
Bellatrix is a Lestrange by marriage to Rodolphus Lestrange, a fellow Death Eater who has a Death Eater brother, Rabastan. All three of them were confined to Azkaban for the torture of Neville Longbottom's parents.
In the tale, the older brother sought power and to conquer death, and was killed by another wizard while he slept. Voldemort also sought to conquer death, thus why he created various horcruxes. Snape is the second brother, Cadmus Peverell, who crafted the Resurrection Stone.
Rolf followed his grandfather's footsteps and became a magizoologist himself, eventually falling in love with Luna. This makes Luna Lovegood the great-daughter-in-law of both Newt and Tina Scamander, further cementing another prestige family lineage in the Harry Potter canon.
Newt Scamander married Porpentina “Tina” Goldstein, and they had (at least) one kid, who had a son named Rolf – who married Luna Lovegood years after the events in Harry Potter and the Deathly Hallows. Both Luna and Rolf were the “wizarding equivalent” of a naturalist, so he has a lot in common with his grandfather.
Given the unfortunate tendency that wands had of rebelling and backfiring when handled by Muggles, this particular wand did not have a core, and thus was incapable of producing magic despite being completely authentic-looking. As such, it was regarded as a "fake wand".
Fleur was quarter-Veela, and grew up in France. She grew up with her father Monsieur Delacour and her half-Veela mother Apolline Delacour. She also had a younger sister, Gabrielle. Fleur's grandmother was full Veela and at some point contributed a hair that would later become the core element of Fleur's wand.
Fantastic Beasts: The Secrets of Dumbledore confirmed that Credence Barebone/Aurelius Dumbledore (Ezra Miller) is the new Snape (Alan Rickman) through a very familiar line delivered by Aberforth Dumbledore (Richard Coyle). Fantastic Beasts 3 finally shed light on the Credence being Aurelius Dumbledore plot twist.
However the real Luna Lovegood was nothing like her counterpart. No she was something stronger, something more powerful, but most of all at this time she was an irate veela who came into her inheritance on her last birthday, and now has to watch her mate being mulled by a redheaded beast.
In his fifth year James saved Severus Snape from a near-fatal prank that Sirius Black played on him, which involved luring Snape to the Shrieking Shack where Remus Lupin was in his werewolf form. As such, Snape owed James a life debt, although they hated each other.
Arabella Helena Snape, is the daughter of Muggle-Born, Helena Constantina, and Half-Blood, Severus Snape. Her second name, coming from her mother, Arabella has traits and looks, similar to her parents.
Perhaps if Snape had lived post-war they could have gotten to that stage, but Harry didn't know Snape's real loyalties until he had died, and, on the flip side, Snape only saw Harry as Lily and James Potter's son, rather than as Harry Potter.
