Prince William, Kate Middleton and Other Royals Attend Memorial Service for Duke of Westminster

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Prince William and Kate Middleton were among 1,400 mourners who gathered at the memorial service on Monday (Nov. 28, 2016) to honor the life of Major General Gerald Cavendish Grosvenor, the sixth Duke of Westminster.

The royal couple were joined by Prince Charles, Camilla, Duchess of Cornwall, cousin Princess Eugenie and others.

The billionaire duke, considered the third richest man in Britain and a close friend of the Royal Family, died of a heart attack aged 64 on August 9 (see more pics at Daily Mail).

His widow, Natalia Phillips, is a godmother to Prince William and their son, Hugh Grosvenor, 25, who inherited the dukedom, is godfather to Prince George.

The duke is also survived by daughters Lady Tamara van Cutsem, Lady Edwina Snow and Lady Viola Grosvenor.