For the second event of the royal visit to Sweden, The Duke and Duchess traveled to the Royal Palace of Stockholm to attend a luncheon hosted by King Carl XVI Gustaf and Queen Silvia to welcome them to Sweden. Fifteen members of the Swedish Royal Court also attended the formal lunch, including Crown Princess Victoria and her husband Prince Daniel.

Kate wore a bespoke forest green tunic dress by Catherine Walker which she teamed with sheer black pantyhose and her trusty Tod's Black Suede Block Heel Pumps.

Following the luncheon, William and Kate, accompanied by Victoria and Daniel walked through the picturesque cobbled streets of Stockholm from the Royal Palace to the Nobel Museum.

For the walkabout Kate topped the Catherine Walker dress with a matching coat also by the London-based atelier. The piece is trimmed with a contrasting black faux-fur collar and cuffs.

The Duchess complemented the look with her Peruvian Connection 'Vallnord' Alpaca Fur Hat (US$99).

She added a touch of vintage chic with a black Mulberry Mini Seaton Bag (£895).

The Mini Seaton's sleek lines and streamlined silhouette are sized down from Mulberry's iconic 'Seaton' style. Its petite size makes it ideal for a day-evening bag or to pack away for a trip. Featuring equestrian-inspired detailing such as raw-edged construction and the signature Rider's Lock, the Mini Seaton can be worn on its adjustable shoulder strap or carried by its neat top handle.

To prevent slipping in the snowy conditions, Kate aptly changed into her Stuart Weitzman 'HalfNHalf' black suede boots.

She completed the look with her Kiki McDonough 'Special Edition' drop earrings featuring green tourmaline and green amethyst stones surrounded by diamonds.  Set in yellow gold, the exclusive earrings were made especially for Kate by KIKI to mark the birth of Princess Charlotte. Kate premiered them during the royal tour of India in April 2016 for a meeting with the Indian Prime Minister.

Tonight, William and Kate will attend a black tie dinner at the Residence of the British Ambassador.

Following a busy start to the royal visit to Sweden, the Duke and Duchess Cambridge concluded their first day in Stockholm with a black tie dinner at the Residence of the British Ambassador.

Kate opted for a bold choice, wearing the Erdem 'Stephanie' floral-printed silk-crepe de chine gown in a gold hue (ID by @HeavenLM‏). The pattern is from Erdem's Fall 2017 collection which was heavily influenced by the designer's Turkish roots. The 'Stephanie' gown is traced with ruffles and has bracelet-cut bell sleeves. It is finished with a self-tie belt at the waist.

The US$2,695 dress is no longer available in the metallic tone, but the 'Stephanie' style was reissued this season in a black floral print. It is currently available at My Theresa, Matches Fashion, Selfridges, Barneys New York, and the The Modist.

The Duchess swept her brunette locks back into a low chignon and offset it with the Collingwood diamond and pearl drop earrings from Princess Diana's private collection.

On her wrist we also see Princess Diana's three-string pearl bracelet by Nigel Milne.

Kate picked up on the deep red accents in the floral print and opted to accessorize with burgundy pumps (possibly her Gianvito Rossi Royale Burgundy Suede Pumps) and a matching clutch.

The suede minaudiere appears to have an embellished frame and faceted clasp. I believe it is the Jimmy Choo 'Celeste' crystal-embellished suede clutch (US$1,495).

Day 2 of the royal visit will focus on Sweden's pioneering work in the field of mental health and children's wellbeing. In the afternoon, William and Kate will visit one of Sweden's leading department stores – NK – to open an interactive exhibition of UK design, fashion and brands that operate in Sweden.  From NK, the royal couple will travel to Haga Palace, Crown Princess Victoria and Prince Daniel's official residence, for a private tea. On their last evening in Stockholm, The Duke and Duchess will attend an event at the Fotografiska Gallery, which at night boasts glittering views over Stockholm.

The Duchess of Cambridge undertook a series of maternal mental health engagements today. She first visited The Maurice Wohl Clinical Neuroscience Institute at the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London. It is one of Europe's largest centres for neuroscience excellence.

Next, Kate toured the Mother and Baby Unit at the Bethlem Royal Hospital, part of NHS Maudsley Foundation Trust. The unit specialises in the treatment of antenatal and postnatal mental health illnesses including postnatal depression and post- partum psychosis.

Following from yesterday's all-blue ensemble for a visit to the Roe Green Junior School, Kate was back in her favorite hue for today's outing.

She teamed her blue mist Seraphine 'Natasha' Coat (£195) with the maternity brand's 'Florrie' dress (£65). She first wore this combination in January 2015 when pregnant with Princess Charlotte for a series of engagements in Kensington.

The Duchess complemented the Seraphine pieces with her navy Jaeger quilted clutch and Jimmy Choo 'Georgia' pumps in a matching navy suede.

Kate finished the look with her Sapphire & Diamond Oval Drop Earrings and Cartier Ballon Bleu Watch.

The Duchess of Cambridge visited the Roe Green Junior School in Brent today to launch a new Mentally Healthy Schools website. Funded by the Royal Foundation as part of the Heads Together campaign, the online resource will be available to every primary school in the UK and will give teachers and staff the clarity and practical resources they need to support pupils.

Kate stepped out in an all blue ensemble. She arrived at the school wearing her petrol blue Sportmax 'Gerbera' coat first worn for a visit to the Emma Bridgewater pottery factorywhen she was pregnant with Princess Charlotte.

She accessorized with a new Beulah London scarf (thanks to @Giulia_lelepug for the ID). It is the brand's 'Elena' scarf in Navy Henri Print (£79.17)

The Duchess also debuted a blue dress by Seraphine. The style is the brand's Royal Blue Tailored Maternity Dress (£99) from their LUXE collection - thanks to @evangelina_th for the ID.  The dress is designed to accentuate the empire waist with stylish gold button detailing under the bust. Cut for an elegant A-line shape, this knee-length dress is made in premium stretch woven fabric, and finished with 3/4 bell sleeves.

On her feet were the Rupert Sanderson 'Malory' Navy Suede Pumps.

Kate carried her navy suede Stuart Weitzman 'Muse' clutch.

She finished the look with her G. Collins & Sons Tanzanite Pendant Necklace & Earrings and Cartier Ballon Bleu Watch.

Following Kate's official event at Great Ormond Street Hospital this morning, her afternoon outing had a more casual tone.  The Duchess of Cambridge visited Bond Primary School - one of the 65 local schools that benefit from the  Wimbledon Junior Tennis Initiative offering free tennis coaching.

You may recall what an avid tennis fan Kate is; she is the patron of the Lawn Tennis Association (LTA) and has carried out multiple engagements involving junior participation in tennis, and Wimbledon in general.

Kate sported a familiar look for today's tennis workshop - a déjà vu repeat of the one she wore last October for an event with the LTA.

Today, Kate swapped her black PlayBrave 'Clarice' jacket for a white one (£129.00).

The outfit also consisted of her Monreal London Side Panel Track Pants (sold out). She first wore the $325 track pants in February 2016 for a tennis workshop with Judy Murray. 

On her feet were the Nike Air VaporMax Flyknit sneakers (US$190).

Kate rounded off her casual style with the Annoushka Pearl and Kiki Diamond Hoop Earrings worn earlier today.