Princess Di's brother and two sisters will have seats of honor alongside Kate’s immediate family. While relations between the Spencer family and the royal family were fraught for some time after Princess Di’s death, her sisters – Lady Jane Fellowes and Lady Sarah McCorquodale – and brother Earl Spencer will be there to represent the Spencer family, according to the International Business Times.
"But, in a move that raised a few eyebrows, [Earl Spencer] was given no formal role and won't be speaking," reports ABC News.