The 33-year-old married her long-term boyfriend, sculptor Andrew Robertson near their family home on Saturday.
In a touching tribute to her mother and sister, the ceremony took place at the St Mary Magdalene and St Lawrence, with Peaches and Paula buried in the graveyard outside.
Peaches' widower Thomas Cohen was photographed arriving to the Kent church with their two sons, Astala (three) and Phaedra (four), alongside Fifi's other sister, model Pixie (25).
PR girl Fifi has enjoyed a life away from the spotlight and went to great lengths to ensure that all details of the wedding remained private.
Guests arriving at the church had to hand over their phones and cameras to security guards before entering the venue.
The Mail on Sunday reported that the bride wore a Jasper Conran gown and her dog Lola was also in attendance, decked out in a customised collar, decorated with flowers and pearls.
In January Fifi posted pictures of floral dog collars on Instagram and wrote: “Finding some inspiration for Lola’s ring bearer outfit.”
Earlier this year Geldof's first-born revealed that she couldn't disclose any information about the big day but did say that the couple had paid a special licence fee of £250 from the local council to ensure that the wedding wouldn't be announced in advance, as is normally custom.
The event marked a happy time for the family to come together in the church after Peaches' funeral took place there in 2014, after she died of a drug overdose. Her mother Paula was also laid to rest there after dying from a drug overdose in 2000.
Fifi recently admitted that she suffered has battled with depression on and off since she was 11.
Speaking to the Mail on Sunday, she said: “I woke up crying about everything and nothing. I remember thinking what the f*ck is going on in my head. I thought I was going crazy.
“It wasn’t a slow and gentle descent into depression. Something totally switches in your mind. I’m still trying to work out what’s wrong with me now.”