Key supporting roles in the royal wedding of the year - if not the decade - were handed out, with Prince Harry named as his brother's best man and Kate Middleton's sister Pippa chosen as her maid of honor.

Prince Harry (left) is to be best man at the wedding of his elder brother William to Kate Middleton. [Mike Hutchings / Chinadaily.com.cn via Agencies]

Prince William and his fiancee also named on Monday bridesmaids and page boys for the big event, including two 3-year-olds who will be asked to be on their best behavior during the globally televised ceremony.

The announcements by St. James' Palace made it clear the April 29 wedding at Westminster Abbey will be a family affair that emphasizes the tight bonds between Britain's youthful princes and between Middleton and her younger sister, the stylish, 27-year-old Pippa Middleton, whose formal name is Philippa.

In the past, royal grooms have usually chosen more than one best man, or supporter as they are sometimes called. But the 28-year-old Prince William has made clear that Prince Harry, 26, offers all the support he needs - so both children of the late Princess Diana will have integral roles in the ceremony.

"It's unusual to have only just one man," said Joe Little, managing editor of Majesty magazine. "All of the queen's sons - Charles, Andrew, Edward - had two supporters at their wedding. But obviously William doesn't feel the need to have more than one supporter and it's by no means a hard-and-fast rule."

The recognition of Prince Harry's key role in his brother's life is one more step in the redemption of his once-tattered public image.

Harry had been derided as a carrot-topped party boy with questionable taste after he was photographed in 2005 wearing Nazi paraphernalia at a costume party, and after he was disciplined by his father, Prince Charles, for smoking marijuana. But the prince with a charming boyish smile gained a significant measure of respect recently for his military deployment in Afghanistan and his charity efforts.

Harry's on-again, off-again relationship with Chelsy Davy has also sparked speculation about a possible second royal British wedding in the not-too-distant future. The official wedding guest list - still a secret - will be closely scrutinized to see if Davy is invited, which would be widely taken as an indication that the relationship is flourishing once again.

Davy, born in Zimbabwe, has divided her time between Africa and Britain, recently leaving London to pursue a career as a lawyer in South Africa.

Since Prince Harry loves to tease his older brother, his toast to the newlyweds is expected to be one of the highlights of the celebration. Will he poke fun at William's receding hairline? Will he mention other girls who once attracted William's eye? Stay tuned.

Kate Middleton's choice of her sister Pippa as maid of honor was seen as slightly surprising because bridesmaids and maids of honor at royal weddings are typically much younger than Pippa, said royal historian Hugo Vickers.

But he said the choice makes sense because the sisters, both raised in the posh suburb of Bucklebury in horse country west of London, are so close. The younger Middleton shares some of her sister's style, including a taste for wraparound dresses, and has also played a contributing role in her parents' successful party supplies business.