The young Royals looked relaxed and happy as they watched the ceremony in the upmarket resort of Arosa.
They have been enjoying a mini-break at the resort as guests at the wedding of their polo-playing friend Mark Tomlinson to Olympic dressage gold medalist Laura Bechtolsheimer.
Happy:
Prince William, his pregnant wife Kate and Prince Harry attended the
wedding of Mark Tomlinson and Laura Bechtolsheimer during a break at an
upmarket ski resort in Switzerland
Thrilled: The Royal trio watched the happy couple from a staircase at the wedding in the Swiss resort of Arosa

The Duchess of Cambridge, who beamed as she watched the newlyweds emerging into the bright Swiss sunshine after the ceremony, was elegant in a cream woollen coat over a floral dress, teamed with a chocolate brown pillbox hat and fur scarf.
The Duchess had previously been pictured on the slopes of the resort.
Holding a wooden sledge and wearing sunglasses, the 31-year-old Duchess wore a brown snug jacket and warm looking boots. She was pictured next to a male friend looking relaxed and happy.
The chocolate-box Alpine resort is known for being small and compact, with stunning views of the surrounding mountains.
It is less well-known for its nightlife, being home to just a single long-established disco bar - which may come as a disappointment to party-loving Prince Harry.
Snow
white wedding: The royals' delight was evident as they sat in the
congregation alongside other guests at the society wedding
Married: The bride, Laura Bechtolsheimer and her husband Polo player Mark Tomlinson leave the church in a horse-drawn carriageLast month, Prince William and Kate enjoyed a break in a sumptuous villa on one of the most exclusive paradise islands in the world.
The happy couple took a ‘babymoon’ break in a luxury £5 million house on Mustique.
Nestled amid lush tropical gardens, with dramatic views of the aquamarine Caribbean waters lapping a tranquil white-sand beach, the five-bedroom house would normally have cost about £19,000 a week to rent.
It was not known whether the multi-millionaire owners, who are close friends of both the Royal couple and the wider Middleton family, charged them for the stay.
The dream home was furnished with Oriental antiques and came with a staff of six servants, who oversee such amenities as a private cinema, gazebo and 64 ft infinity pool.
During the lavish trip, the Duchess was seen every day at the tennis courts on the privately owned island.


Fun:
Kate flung a handful of confetti into the air as the newlyweds walked
past following the ceremony in a bright and sunny Switzerland today
Holding court: Prince Harry, Kate and Prince William chatted with other guests at the society wedding
Royal guest: Prince Harry attended the wedding alongside his brother Prince William and sister in law Kate

CHOCOLATE-BOX SWISS RESORT
Arosa is known as being a small, smart resort with spectacular views of the surrounding mountains.
The town is situated just two hours south of Zurich in the Graubünden mountains. It is set high above the treeline in a natural bowl and is both a summer and winter tourist resort.
Despite the Royal trio all being advanced skiers, the remote Swiss town is known for suiting skiers of all abilities. It boasts more than 37 miles of slopes. Prince Harry may have been disappointed to learn that the resort is not big for its nightlife, although it does contain one long-established disco bar.
Two lakes are also situated in the centre of the resort.
The town is situated just two hours south of Zurich in the Graubünden mountains. It is set high above the treeline in a natural bowl and is both a summer and winter tourist resort.
Despite the Royal trio all being advanced skiers, the remote Swiss town is known for suiting skiers of all abilities. It boasts more than 37 miles of slopes. Prince Harry may have been disappointed to learn that the resort is not big for its nightlife, although it does contain one long-established disco bar.
Two lakes are also situated in the centre of the resort.
‘I’d heard they were planning to leave on Thursday but that they are enjoying themselves so much, they may stay until after Valentine’s Day.’
The couple were joined by the Duchess’s sister Pippa, brother James and parents, Carole and Michael.
The Middletons rented accommodation nearby to give the couple some privacy.
Royal links to Mustique go back to 1960, when Princess Margaret was given a ten-acre estate there. The Queen and Prince Philip have also made several visits to the island.
An unprecedented veil of secrecy was drawn over William and Kate’s visit.
One American businesswoman, who is a regular visitor to the island, said: ‘The owners are an absolutely lovely pair and their villa is stunning.
‘It is perfect for William and Kate because it is luxurious and secluded. It is just what they need before the fervour of a newborn baby.
'I imagine they are on their guard after Kate was photographed topless in France, but there is no chance of that happening in Mustique.’
The expectant couple's trip to Mustique earlier this year was their seventh visit to the paradise island.
With its long stretches of white sand, palm trees and balmy temperatures, it is a world away from the Duke and Duchess of Cambridge's current location in a Swiss ski resort nestled in the snowy Graubünden mountains.
But with Kate snug in a cream woollen coat and a smart chocolate brown hat, and husband William decked out in tails, the pair looked more than happy to be in attendance at their friends' nuptials, in spite of the the brisk temperatures.
Focus
of attention: Normally all eyes would be on the Duke and Duchess, but
they were happy to stay in the background at their friends' wedding

Standing out in a crowd: The Duchess of Cambridge looked beautiful as her face caught the sun in Switzerland

Break:
Prince William and his pregnant wife Kate are currently enjoying a
break at a plush ski resort in Switzerland. The couple are pictured
skiing on a previous trip to Klosters
Pleasant:
The Royal trio are guests at the wedding of their polo-playing friend
Mark Tomlinson to Olympic dressage gold medalist Laura Bechtolsheimer in
the Swiss resort of Arosa
Flying high: Matt Lapinskas and Brianne Delcourt perform their first routine on Dancing on Ice
'The most beautiful flying routine from a male celebrity': Matt was rounded praised by the judges for his grace in the air
Old school: The pair performed to a Nat King Cole song
Excited: Matt and Brianne celebrate after getting their high score
Wowing the judges: Matt's second routine was to Michael Jackson's Bad
Red hot! Matt and Brianne turned up the raunch factor
Sexing things up: Beth Tweddle and partner Dan Whiston performed to Jessie J's Domino
Graceful: Beth and Dan's flying routine to Sarah McLachlan's Angels was stunning
Strength: Beth had to support the weight of Dan as they glided across the ice
Let's fly: Luke Campbell's first performance of the night with partner Jenna Smith was to James Vincent McMorrow's Higher Love
In the pink: Luke and Jenna's second performance to Westlife ballad What About Now? gave them their best score so far with 31.5
Not well: Gareth Thomas and partner Robin Johnstone only performed once as he struggled with severe motion sickness
Brave: Despite his illness, Gareth managed to perform with Robin to Coldplay
All
white now: Philip Schofield looked dapper in dark blue, while Christine
Bleakley wore a white Suzanne Neville dress and YSL heels
High scores: The judges (L-R Robin Cousins, Karen Barber, Ashley Roberts and Jason Gardiner) were giving out 10s
The mother and daughter model duo look more like sisters in the Monsoon Heritage campaign
Le Bon, 48, looks half her age in the hippie chic, Middle Eastern princess style photographs
Yasmin wears KAFTAN, £79, sizes s-l; BANGLES, £16 for set, and SANDALS, £25, sizes 3-8
Amber
wears (left) Cotton shirt, £45; Cotton skirt, £65, both sizes 8-18;
Necklace, £22, and Sandals, £35, sizes 3-8.Yasmin wears cotton top, £16,
sizes s-xl; cotton Trousers, £45, sizes 8-18; scarf, £35, and Sandals,
£29, sizes 3-8
Yasmin
wears Cotton dress, £69, sizes 8-22; Cotton scarf, £29; earrings, £16;
pompom necklace, £29; silver necklace, £39; Bangles, £16 for set, and
Sandals, £25, sizes 3-8
Yasmin
wears (left) Cotton shirt, £45, sizes 8-18; Cotton skirt, £55, sizes
s-l; Necklace, £39; Bangles, £16 for set, and Sandals, £35, sizes 3-8.
Amber wears embellished cotton waistcoat, £79, sizes 8-18; Cotton skirt,
£55, sizes s-l; Bangles, £16 for set, and SandalS, £25, sizes 3-8
