Carole Middleton and Pippa Middleton were seen attending the glittering reception following the ceremony at Zahran Palace, after flying out to join special guests of honour the Prince and Princess of Wales. Pippa was also accompanied by her husband James Matthews.
Princess Kate's glamorous mother was wearing a beautiful blue embroidered gown while Pippa opted for a similar style as they watched Queen Rania and King Abdullah II of Jordan take to the stage to greet guests.
The Middletons mingled with their fellow attendees at the lavish reception following the royal wedding earlier in the day, which boasted a strict 140-person guest list.
Eagle-eyed fans noticed the famous family on social media, with one royal fan tweeting: "Wow. Personal friends of the Jordanian Royal Family. I had no idea the Wales' extended family on Catherine's side were invited. Impressive."
Crown Prince Hussein and Rajwa Al Saif's royal wedding
Crown Prince Hussein married Rajwa Al Saif at the breathtaking Zahran Palace in the presence of 140 guests this Thursday.
The marriage ceremony known as "katb ktab" took place in the gardens of the palace on Thursday at 2pm UK time, in the presence of the Royal Hashemite Family, foreign and Arab heads of states, and high-ranking officials.
The bride arrived in a special procession called the Motorcade, consisting of eight bright red armed Land Rover vehicles and 11 motorcycles.
A much bigger guest list of 1,700 gathered for performances by local and regional singers, as well as a choir, Jordanian bands, the national orchestra and folk dance troupes.
The stunning bride, who walked down the aisle arm-in-arm with her brother-in-law Prince Hashem, wore a custom white Elie Saab gown.
It featured a fitted column silhouette with an asymmetric neckline, ruched bodice and, most impressively, a long embroidered train attached to the waist.
Following the main reception, the wedding banquet will be taking place at Al Husseiniya Palace.
Guests included Queen Maxima and her daughter, Princess Catharina-Amalia, and First Lady Jill Biden, who has flown in with her daughter Ashley Biden.
Other guests attending include Princess Takamado of Japan and Their Royal Highnesses Crown Prince Frederikand Crown Princess Mary of Denmark.
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