Lupin might have been book smart, and certainly the best-behaved of his Hogwarts friends, but the fact that Professor Dumbledore thought that making him prefect would encourage him to exert control over James Potter and Sirius Black is, frankly, laughable.
A Prefect at Hogwarts was a student who enjoyed a level of seniority over the other students, complete with a Prefect badge. One male and one female student in their fifth year from each house would be chosen for the role of Prefect, such as Ron and Hermione for Gryffindor in Harry's fifth year.
In Harry Potter and the Order of the Phoenix, Draco is named a Slytherin prefect along with Pansy Parkinson. He gets Harry and the Weasley twins banned from the Gryffindor Quidditch team when they attack him during a postmatch brawl after Draco insults their families following Gryffindor's win over Slytherin.
Personality. As a student at Hogwarts, Sirius was well-known for being a troublemaker, and once mentioned to Harry that he, James, Lupin, and Pettigrew "were all idiots." He once stated that he had never been appointed a prefect as he always spent too much time in detention with James.
Dumbledore had stated in the fifth book that he did not want to make Harry a Prefect because he felt he had too much already on his his mind. Yet Draco Malfoy and Pansy Parkinson abuse their position greatly and were biased towards their own house.
Narcissa Anastasia Malfoy (née Black) (born 19 July, 1955) was an English pure-blood witch and member of society. She attended Hogwarts School of Witchcraft and Wizardry from 1 September, 1966, to June of 1973, where she was Prefect and later Head Girl.
Being a prefect didn't guarantee a student to become a Head Boy or Girl. In fact, the Head Boy or Girl did not have to have been a prefect at all. The Weasley family was noted for having had several prefects among its sons — first Bill, then Charlie, then Percy, and finally Ron.
Highly ambitious and a little more serious than his siblings, Percy Weasley was determined to make his mark on Hogwarts as prefect and Head Boy, with future ambitions to climb high at the Ministry of Magic.
It seems Dumbledore makes these decisions (he said to Harry in OotP “If you wondered why I didn't make you a prefect…”) and for reasons known only to himself, he decided not to make her one. If I had to speculate, I'd say that cheeky, talkative, mischievous, hotheaded Ginny probably didn't have the p...
He began his quest to attain immortality between the years of 1943 and 1998, creating his first Horcrux at the age of sixteen. While attending Hogwarts, Tom Riddle was made a prefect in 1942 until his graduation in 1945.
And Remus was in love with Sirius (also hopelessly, because Sirius only had eyes for James). Then James was killed, Sirius was imprisoned, Remus was outcasted, and Peter was ratatouilled.
As a single werewolf, it is understandable that Remus could not take care of Harry after his parents died. It's also possible he was not informed where Harry was placed and thus couldn't write to him in his early years at the Dursleys.
Other prefects appointed at the same time are Pansy Parkinson from Slytherin, Ernie Macmillan and Hannah Abbott from Hufflepuff, and Anthony Goldstein and Padma Patil from Ravenclaw.
Dumbledore makes Ron a Prefect because he knows about his aspirations revealed by the Mirror of Erised. In Harry Potter and the Sorcerer's Stone, Ron sees himself in the Mirror of Erised as Head Boy, like his brothers Bill and Percy, Captain of the Quidditch team, and standing out among his brothers.
One male and one female student are chosen from each house in their fifth year to act as prefects, and would continue to be prefects in their sixth and seventh years until they leave school. Thus, there are approximately six prefects per house, and twenty-four prefects in the whole school at one time.
During this year, Narcissa became pregnant and miscarried. She was distraught and uncertain of what to tell Lucius, as she had not told him of her pregnancy. Shortly thereafter, he brought her out to the Leaky Cauldron to visit with his friends Vettlingar Yaxley and Thorfinn Rowle.
She married Rodolphus Lestrange after leaving Hogwarts "because it was expected of her" to marry a pure-blood. However, Rowling stated in an interview that Bellatrix truly loved Voldemort.
When Lucius turns on Voldemort due to the reveal of his Horcruxes, Narcissa divorces him, taking 75% of Malfoy's wealth with her. Even her relationship with Draco is different, with POS-Narcissa only viewing Draco as a tool to further her own agenda.
Lucius was educated at Hogwarts, where he was a prefect in Slytherin House. As an adult, Lucius was an aristocratic wizard and head of the Malfoy family, believing strongly in notions of blood purity and the superiority of pure-blood wizards.
All of the Weasley children, except Bill and Percy who both were Head Boy, are known to have played on the Gryffindor Quidditch team, with Charlie being the captain of the team for at least one of his school years. Bill, Charlie, and Ron were also chosen as the prefect of their House.
Why is Harry a half blood if both his parents are wizards?
By the 1990s, most of the magical population were half-bloods. The children of Harry and Ginny Potter were considered half-bloods because although Ginny was pure-blood, Harry's mother was Muggle-born. The term was used as an insult from members of fanatical pure-blood families.
