Pocket-Square HeirWear a Pocket Square: A How-To By Prince Charles, Gallery Tom Sykes06.22.12Pocket-Square HeirWear a Pocket Square: A How-To By Prince Charles, Gallery In honor of his 65th birthday, a look at Prince Charles's favorite fashion accessory.Tom Sykes06.22.12 10:55 AM ETGetty Images (2) ; AFP / Getty Images ; WPA Pool / Getty ImagesKing of The SquaresNo one wears a pocket square like Prince Charles. Let the King of the 'kerchief show you how. Chris Jackson/GettyRed, White, and BlueOn May 23, Chaz kept things patriotic in a red, white, and blue ensemble. Thomas Niedermueller/GettyGeometricCharles made sure he brought his pocket square along for his travels to Schloss Langenburg, Germany on May 27. Stuart C. Wilson/GettyBaby BlueWhat's better than a pocket square AND a top hat? Ben Stansall/AFP/GettySeeing StripesFor the birth of his new grandson, Prince George, Prince Charles sported a blue-and-yellow striped square. GettySplash of PatternPrince Charles speaks to the Prince's Countryside Fun on July 24 rocking a red, tan, and blue patterned pocket square with his sand colored suit. Arthur Edwards / Getty ImagesNo, I Love Yours!Prince Charles and King Carl XVI Gustaf of Sweden compare pocket square notes as they visit the Royal Palace on March 23. Torkil Adsersen / AFP / Getty ImagesTwice as StripeyProving there are no rules except style, Chaz mixes stripes with stripes. Jeff J Mitchell / Getty ImagesRoyal WaverleyThe Duke of Rothesay, as he is known in Scotland, arrives at Waverly Station on May 8, 2012 in Edinburgh, Scotland. Paul Chiasson / AFP / GettyImagesNo PunchYes, a mistake! Dark pocket square on dark suit fails to give the added pop that is a pocket square's raison d'etre. Mark Blinch / AFP / GettyImagesCasual FridayYes, you can work a pocket square with a casual look. Frazer Harrison / Getty ImagesMatchy-matchyPrince of Wales visits The First Nations University of Canada. Note tie/square co-ordination. Dan Kitwood / Getty ImagesHanding Down the KnowledgeLike father, like son. AFPProud FatherThe master and his student. Gareth Cattermole / WPA Pool / Getty ImagesRobe ReverbPrince Charles, Prince of Wales receives His Holiness the Dalai Lama at Clarence House. Square/tie/buttonhole combo is faultless, and also echoes the Lama's robes. Respect. Facundo Arrizabalaga / Getty ImagesFashion Rights Aung San Suu Kyi meets with Prince Charles. Dominic Lipinski / WPA Pool / Getty ImagesPaying AttentionThe square is an identical color to the shirt. Details, details. Chris Jackson / Getty ImagesFormal LookSimple white 'kerchief to match the shirt works well for a super-formal dinner Lefteris Pitarakis - WPA Pool/Getty ImagesNot SquareHow-to: The pocket square should appear to have been effortlessly thrust into the top pocket, although in fact it has been carefully arranged to puff Adam Jacobs / Getty ImagesHow-Not-ToAndrew thinks he will never be King due to an accident of birth, in fact, it's because he doesn't wear a pocket square.