The Duchess of Cambridge and her dashing Prince, William, joined the rest of the Royal Family this morning for the National Thanksgiving Service for The Queen at St. Paul’s Cathedral.

The brunette beauty capped off her weekend fashion reign in another Alexander McQueen dress.  Looking out of this world in a champagne colored sheath with long sleeves, Kate looked every bit the part of a modern day princess in all nude.  She also wore pearl earrings which she’s previously worn.

The bespoke Alexander McQueen dress was probably inspired by its creative director, Sarah Burton’s spring/summer 2012 collection for the British label.  Cinching the waist of  the below the knee dress was a darker champagne colored silk belt.  Kate of course being the queen of monochromatic looks, kept the look very classically conservative with her go-to LK Bennett Sledge pumps and her Prada box clutch.

The stunning new Duchess completed her look with a gorgeous champagne colored Jane Taylor hat that matched the romantic aesthetic of her lace McQueen boat neck sheath dress.  The hat had flower petals, a beaded disc trim and a birdcage veil.  The bespoke hat is part of Jane Taylor’s bridal collection and retails for around $1300.