I know it's more than a year later, but I hope this helps.
a recipe that uses Princess's Robe. This makes the Queen's Robe (for female ): Princess's Robe x01, Monarch's Mittens x01, Lambswool x02.
*Monarch's Mittens: Marquess's Mittens x01, Highness Heels x01.
*Marquess's Mittens: Mayoress's Mittens x01, Monarchic Mark x01.
*Monarchic Mark: Lucky Pendant x01, Raging Ruby x01, Ruby of Protection x01.
Sorry, but I can't remember where I got the Mayoress's Mittens... I found the Lucky Pendant in a chest by chance. Here are more Dresses you can alchemise though;
*Dragon Dress (for female Martial Artist): Strongsam x01, Dragon Scale x01, Finessence x02.
*Dancer's Dress (for female Minstrel): Dancer's Costume x01, Brighten Rock x03, Technicolour Dreamcloth x01.
*Empress Robe (for female Priest, female Mage, female Minstrel, female Armamentalist, female Sage): Queen's Robe x01, Spellward Circlet x01, Lambswool x03.
*Shimmering Dress (for all female Vocations): Spangled Dress x01, Pink Pearl x01, Brighten Rock x03.
*Technicolour Tutu (for female Luminary): Tint-Tastic Tutu x01, Technicolour Dreamcloth x01.
You can make Celestria's Gown and her Raiment too, but weirdly it can be worn by females AND males...
*Celestria's Gown (for Priest, Mage, Minstrel, Armamentalist, Ranger, Sage): Nightmare Gown x01, Saint's Ashes x03.
*Celestria's Raiment (for Priest, Mage, Minstrel, Armamentalist, Ranger, Sage): Celestria's Gown x01, Agate of Evolution x01, Astral Plume x07.
There's also recipe's for Bikini's, too. You need to get to the Secret Shop in Dourbridge to buy the Dangerous Bikini Top and Dangerous Midraff Wrap first, though.
*Hot Bikini Top (for all female Vocations): Dangerous Bikini Top x01, Seashell x03, Crimson Coral x02.
*Hot Bikini Bottoms (for all female Vocations): Dangerous Bikini Bottoms x01, Seashell x03, Crimson Coral x03.
*Sizzling Bikini Top (for all female Vocations): Hot Bikini Top x01, Technicolour Dreamcloth x01, Astral Plume x02.
*Sizzling Bikini Bottoms (for all female Vocations): Hot Bikini Bottoms x01, Technicolour Dreamcloth x01, Astral Plume x02.
Happy Gaming Everyone!!