Severus Snape, Also known as the Half-Blood
Prince was born to a Witch Eileen Prince and
a muggle Tobias Snape on the 9th of January
in the year 1960.
He has a major and a very important role and
character in the whole Harry Potter Series.
He is the most polarized and complicated character
in the Harry Potter World.
He was born in an impoverished neighborhood
of CokeWorth, which is an old subrub in England.
As a child, when he was 9 years old, he met
his neighbors Lily Evans and Petunia Evans,
the two muggle sisters living a bit farther
from Snape's home.
Snape fell in love with Lily Evans, a beautiful,
redheaded muggle but Lily always conisdered
Snape not more than a good friend.
On their first day at Hogwarts, Lily told
Snape that She wants to be sorted into Slytherin House
but James Potter interrupted their conversation,
declaring himself as a Gryffindor.
Afterwards, Lily was Sorted into Gryffindor
and not Slytherin breaking Snape's heart and making
him feel aghasted.
This sudden influence of James over Lily always
made Snape furious.
Snape was being bullied by the marauders,
the four friends Remus Lupin, James Potter,
Sirius Black and Peter Pettigrew.
He was called Snivellus by them as this seemed
a funny way to tease him.
As Snape became more of a recluse due to bullying,
he gravitated towards the dark arts which
ultimately made him a death eater and follower
of Voldemort.
Voldemort convinced Snape to spy over Dumbledore
and to give him the information of each and
everything  that happens at Hogwarts.
Later, When the only son of Lily Evans 
 (Later Lily James Potter) 
started studying at Hogwarts
School of Witchcraft and Wizardry, Snape taught
him Potions at the start.
Harry was not much interested in Snape and
also in the subject he taught, The Potions.
Snape always tried to come as close to Harry
as he could, he loved Harry more than any
student because this was the only remain of
her love, Lily.
On the other hand, he had not much interest
in Harry because of the fact that Harry's
father, James Potter, bullied and teased him in his school life.
Snape always told Harry, he has his mother's
eyes.
Snape overheard the prophecy about the fate
of Voldemort and told him.
When he was eavesdropping in the Hog's Head
Pub in 1980.
Snape was seen eavesdropping and he was thrown
out by Dumbledore and his brother Aberforth.
After Voldemort had killed Lily and James,
Snape stopped following Voldemort and then
worked as a Double-Agent servicing Dumbledore
and the Order of the Phoenix.
Snape saved Harry from the dementors in Harry
Potter and The Prisoner of Azkaban.
The Patronus of Lily and Snape was the snape
and hence it proved, how much did Snape love
Lily and hence, Harry.
Snape conjured the Patronus to defend Harry.
Snape always tried to save Harry.
In a Quidditch match of Harry Potter and the
Philosopher's Stone, Snape murumurred a spell
to defend Harry from the spells of Quirrell.
Hermione, along with Harry and Ron thought
Snape is jinxing Harry and hence, Hermione
set Snape's robes on fire.
Later, Dumbledore granted Snape to kill him
because He was the only one Dumbledore could
trust on.
Dumbledore didn't want Draco to kill him,
even if Draco disarmed Dumbledore.
He didn't want Draco to be called a Killer.
As Draco Disarmed Dumbledore, the elder wand
came in possession of Draco Malfoy while Voldemort
thought Snape is it's owner.
Voldemort then attempted to kill Snape by
Nagini, thinking he is the master of the
Elder Wand 
And He was not.
Snape died in Harry's hands looking straight
into Harry's eyes which realized him of his
mother, Lily.
Snape told Harry to collect the memories which
flown from Snape's eyes in the form of tears.
Harry was greatly surprised to know about
Snape, the real Snape
When he saw his memories in Dumbledore's Pensieve.
He was feeling guilt but on the other hand
he felt proud to be Snape's Student and that
he spent his seven years with Snape.
He died on 2nd May, 1998 before the Hogwarts
Battle.
Later on, when Harry defeated Voldemort and
married Ginny Weasley, Harry named his son,
Albus Severus Potter, having the name of his
most beloved people Albus Dumbledore and Severus
Snape.
Harry told Albus Severus Potter, his son, that Severus
Snape was the bravest man Harry had ever knew.
Severus Snape was a deeply grey character,
approved by J.K Rowling herself.
Such was his loyalty, that he even forgot
himself just because of the love and sacrificed
his smile to protect Harry.
Although, the true fans of Severus Snape knows
he is much more than that they expect.
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