Cederic Digory
he played a student at hogwarts called Cedric Diggory
There was a Hogwarts dance, called the Yule Ball, in book 4 (The Goblet of Fire), on Christmas in the books.
The Triwizard tournament is taking place at Hogwarts. At the beginning and at the end, the small town of Little Hangleton, where Voldemort's father lived and was killed, and its graveyard, where Cedric Diggory was killed and Voldemort was reborn. Hogwarts is somewhere in Scotland and Little Hangleton is in England.
Lord Voldemort
It was Hogwarts turn to host the event so it is there. It also works with the story line in keeping the setting there.
Hogwarts obiusly cause hogwarts is the biggest wizarding school and its allready built for boys and Girls!
It is for Hogwarts to choose the one best person to compete from the 3 schools.
As revealed in "Goblet of Fire", by house elves.
Harry's rivals in 'The Goblet of Fire are: Fleur Delacour (from Beauxbatons) Viktor Krum (from Durmstrang) Cebric Diggory (from Hogwarts)
The Triwizard Tournament involves the three major schools: Hogwarts, Durmstrang Institute and Beauxbatons Academy. The schools take it in turns to host the tournament, in the Goblet of fire Hogwarts was the host. Each school brings a selection of students to the host's school based on different traits, eg: bravery, knowledge, logic. The students put their names in the goblet of fire which will choose one student per school to compete. The ministry of magic decided that the tournament had in the past resulted in too many deaths and that an age restriction should be placed as under 17's had not learned enough magic. Barty Crouch Junior, working under cover for Voldemort placed Harry's name in the goblet under another school and fooled the goblet into thinking that four schools were competing so that Harry was the only one in his category.
harry potter and the goblet of fire
At the end of the fourth book (Harry Potter and the Goblet of Fire), in the chapter 'The Graveyard' which tells you the location of his death. Wormtail killed him on Voldemort's orders. He died on the 24th June 1995.