Prue Halliwell:
In season 3, eldest sister Prue was tricked into marrying the warlock Zile in a dark ceremony. It was performed by a dark priestess and once married, Prue turned evil, turning her sisters Piper and Phoebe evil as well. Piper and Phoebe were able to break the spell when they vanquished Zile and the Priestess.

Piper Halliwell:
This was Piper's first attempt to marry her whitelighter Leo. A holy union was the only way they could be together, so they decided to marry in secret. Phoebe came up with the idea for them to marry during the eclipse when the Elders couldn't see them, the plan would have worked if Cole hadn't reported it to the Triad.

Piper Halliwell:
When the Elders finally allowed Piper and Leo to be together, Piper got the wedding she dreamed of. Things didn't quite go to plan when Prue's astral self started causing chaos, but eventually Piper and Leo made it. Piper also received the best prsent she could, her dead mother attending her wedding.

Phoebe Halliwell:
Phoebe and Cole were possessed by the ghosts of Frankie and Lulu, two wild former thieves. The ghosts went on a series of raids before trying to tie the knot, something they'd been trying to do for years. They didn't succeed and were forcued back into their ghost realm. Phoebe asked Cole to "ask me again" so he proposed again, and she said yes.

Phoebe Halliwell:
Phoebe wanted her dream wedding to Cole, but she didn't know that he was in fact the Source of all evil. The Source had been plotting with the Seer to destory Phoebe's white wedding, and trick her into a dark ceremony in order for Phoebe to conceieve an evil heir.

Paige Matthews:
After a witch doctor cursed the Halliwells with obsession, Paige became obsessed with her former boyfriend and best friend Glen who was going to marry. Paige kindnapped Glen's finacee and put her in the underworld, then used her power to glamour into her body. Leo managed to stop Paige and Glen getting married by forcing Paige to see she was hurting Glen, breaking the curse.

Phoebe Halliwell:
After Billie casted a spell, Phoebe and Dex rushed to get married. Phoebe was shocked and angry that she'd married Dex, and had to explain it to him. They decided to give their marriage a go, but later had it annulled.

Paige Matthews:
Paige marries her boyfriend Henry, and becomes the last Halliwell to actually marry. Although it was intended to be an engagement party, after the sisters fought against the Traid, Henry decided he wanted to arry Paige as soon as possible. After some magical assistance Paige and Henry marry.

Phoebe Halliwell:
Phoebe marries Coop after future Wyatt and Chris reveal that Coop was sent to Phoebe not to help her find love, but so she could fine him. The Angel of Destiny married them in Magic School with Piper and Paige as bridemaids, Leo, Victor, Henry, Wyatt and Chris as guests.