Imogen, her boyfriend Adam Horsley and their gorgeous little girl travelled to Ireland for the celebration before sharing some cute pictures on Twitter.
In one, Imogen is sitting waiting for the ceremony to begin with Ariana quietly resting on her lap.
The four-month-old tot is dressed in a sweet cream dress with a brown and cream polka dot underskirt and bow. She is also sporting a headband, while Imogen has coordinated in a cream tailored jacket.
Later, Imogen shared a collage of photographs which shows her little family enjoying the reception that followed the wedding.
In these snaps, Imogen has removed her jacket to reveal a bright emerald dress with peplum skirt - an ideal colour for an Irish wedding! - while Adam is looking rather dapper in a suit.
Alongside the pictures, Imogen tweeted: "Wedding day in Ireland xx"
Aww, what a cute family!