Lou Teasdale and Sophia Smith also attend the nuptials
Harry Styles, Niall Horan and Liam Payne saw Johannah Poulston tie the knot with fiancé Dan Deakin, along with 1D’s hairdresser Lou Teasdale.
Liam, 20, brought along his girlfriend Sophia Smith while Louis’ long-term love Eleanor Calder was a bridesmaid with his four younger sisters.
Zayn Malik was the only band member who was absent from Wentbridge House Hotel in Pontefract, West Yorkshire for the celebrations.
Mum-of-seven Johannah – who welcomed twins Ernest and Doris with Dan, 31, in February – looked lovely in a custom-made lace dress and diamanté headband.
Louis, 22, matched new stepfather Dan in a dapper navy suit and pretty Eleanor, 21, was stunning in a shimmery full-length gown.
Irish Niall, 20, donned a smart ensemble, Liam and Sophia, both 20, wore co-ordinating black outfits and Harry, 20, worked a rockstar-esque fedora and open shirt.
The boys were seen chatting to each other and playing croquet during the nuptials, which are said to have got ‘everyone smiling and laughing’.
Johannah clearly enjoyed the special occasion, later Tweeting: ‘Lovely Day 👏.’