Prince William honours Kate Middleton as he hosts lavish party at Buckingham Palace

Prince William paid a tribute to his sweet wife Kate Middleton as he teamed up with royal cousins to enjoy a lavish party at Buckingham Palace on Tuesday.

The Prince of Wales appeared in good spirits as he hosted the first garden party of the year after "excited" Kate shares update on work behind the scenes.

William was all smiles and looked dashing in a morning suit and top hat as he stepped in to host a garden party at Buckingham Palace on behalf of his father, King Charles.

Kate, continues to stay out of the public eye as she undergoes cancer treatment, the Prince of Wales invited some of his cousins to help with hosting duties at the afternoon festivities.

Princess Beatrice, Princess Eugenie, Peter Phillips, Zara Tindall and her husband, Mike Tindall, joined heir to the throne William to on on a united front in a rare outing highlighting the next generation of the royal family. 

Beatrice, Eugenie and Zara seemingly paid a tribute to Kate Middleton as they all coordinated in pink and white ensembles. The future Queen, who loves flowers show, was absent from the star-studded event as she continues her cancer treatment. 

35-year-old Beatrice looked ready for spring despite the rainy weather in a bold pink dress with long sleeves and a white hat. Her younger sister Eugenie wore a white dress with a pale pink headpiece for the event.

Zara Tindall appeared in celebratory mood as the 43-year-old also stuck to the color scheme, sporting a white dress with pink buttons. Mike Tindal's wife accessorized with a pink hat and heels. The rain called for another matching accessory for all three women: black umbrellas!

William and other men also put on a stylish display with smile on their faces. The latest outing comes after wife Kate shared an update on keeping up with work behind the scenes amid her battle with cancer.

A senior royal aide confirmed: "The Princess of Wales was the driving force behind the business task force. She has been kept up to date since the inception of the task force and she has read the report and been briefed on it."

Prince Kate will only resume those duties once she has the "green light from doctors".