Amelia Windsor and Diana’s nieces go glam in monochrome at National Gallery Summer Party

Lady Amelia Windsor and Princess Diana’s nieces brought all the glamor to the National Gallery’s summer party tonight.

Amelia, 27, looked effortlessly chic in a black cotton mini dress as she arrived at the annual event in London sponsored by British designer Burberry.

The model, who lives in Notting Hill, opted for a voluminous dress with an oversized ruffled neckline.

The pretty dress also had feminine tie straps that sat on Amelia’s shoulders.

Styling her ensemble to perfection, Lady Amelia paired this detail in her dress with her black silk handbag – which also had a pretty bow on the outside.

Princess Diana’s twin nieces Lady Amelia (right) and Lazy Eliza Spencer (left), 30, opted for matching V-neck dresses

Forgoing heels, the stylish royal chose black leather brogues with eye-catching silver buckles instead.

Amelia straightened her blonde hair for the occasion and tucked it behind her ears as she posed for photos.

Letting her eye-catching dress take center stage, the model opted for understated gold jewelry for the event.

Amelia wore a simple gold chain around her neck, along with some pretty hoops and chunky bracelets.

To complete her evening ensemble, Amelia kept her makeup minimal — opting only for a touch of bronzer, highlighter, and some pink lipstick.

What’s more, Princess Diana’s twin nieces Lady Amelia and Lazy Eliza Spencer, 30, opted to coordinate V-neck dresses with sleek ponytails for this evening’s event.

Lady Amelia – who recently married long-term boyfriend Greg Mallett in a lavish ceremony in South Africa – looked sensational in a Greek-style white wrap dress.

The newlywed couple paired her chic dress – which had sheer sleeves – with a silver handbag and green jeweled necklace.

Lady Amelia combined this detail in her dress with her black silk handbag – which also had a beautiful bow on the outside

Letting her eye-catching dress take center stage, the model opted for understated gold jewelry for the event.

Lady Eliza (left) and Lady Amelia Spencer (right) looked sensational in plunging Grecian style dresses

Lady Amelia Spencer paired her dress with a silver handbag and a statement necklace with green jewels

Meanwhile, Lazy Eliza Spencer chose a similar plunging dress in black with eye-catching feathered sleeves.

Teamed with a diamond tennis bracelet, the model opted for a statement necklace with pink jewels and was pictured with an oversized black leather handbag.

Both Lady Amelia and her sister Eliza have followed their older sister Lady Kitty – who is an ambassador for Dolce & Gabbana – into the fashion world.

In 2015, the twin sisters – whose mother Victoria was also a model – made their modeling debut when they appeared on the cover of Tatler magazine with a 20-page spread.

Soon after, she signed with Storm’s model management – which allowed her to work with luxury brands such as Parisian jewelers Chaumet and Carolina Herrera.

Earlier this year, Lady Amelia and her sister appeared on the catwalk for designer Josh Birch Jones during their London Fashion Week.