Misan Harriman was the one to take the photographs, and she attended the shindig — which was held on Saturday, June 4 — in addition to close friends and family.
Fans immediately flocked to the comments section to gush over the tiny tot. One person wrote, "So sweet," while another added, "Gorgeous pics ❤️."
A third person gushed, "Wow what a beautiful girl Lili is . Thank you for sharing . Absolutely gorgeous. ❤️❤️❤️."
"It was a lovely do and had everything you’d expect from a child’s birthday party," a source dished. "But there was no formal entertainment. The idea was for it to be very relaxed and casual, with people free to pop in and out as they wished."
"Her first birthday is such a milestone, there was lots of discussion ahead of time about the presents that she would be given on the day," the source shared of the gifts. "One idea that proved very popular was a £75 pink Volkswagen Beetle ride-on toy, which had been spotted in Selfridges."
The California-based couple jetted home on Sunday, June 5 — and they even missed out on some of the festivities.