Fred Weasley is the fourth child of Arthur Weasley and Molly Prewett. He was born on 1st April 1978, the same day as his twin brother, George. Fred died on 2nd May 1998 during the Battle of Hogwarts. He attended Hogwarts School of Witchcraft and Wizardry between the years 1989 and 1996, after which he opened a joke shop with George in Diagon Alley called Weasley's Wizard Wheezes.
Fred is a very energetic and fun character who is fond of Quidditch, Gryffindor, pranks and his family. We see his personality through his interactions with the people he cares about and he appears very genuine. During his time at Hogwarts, we see he allies himself with fellow mischief makers such as George, Lee Jordan and Peeves. He doesn't really take his schooling seriously which is demonstrated in his blatant yet admirable disrespect for the rules. For example, he creates a swamp in a corridor and gives Umbridge hell (which she deserved).
In the Goblet of Fire, Fred asks Angelina Johnson to the Yule Ball with him, which she accepts, starting their relationship. When Fred dies, Angelina begins dating George and later marries him and has two children.
George is Fred's twin brother and the pair appear to be inseparable, even calling themselves Gred and Forge. The only time any harm befalls the twins is when they are apart (Fred's death, the loss of George's ear). After they graduate Hogwarts in 1996, the pair start up a joke shop called Weasley's Wizard Wheezes using Harry Potter's prize money from the Triwizard Tournament.
Many people ship Fred with many people, but here are a few popular ones: