Princess Madeleine of Sweden and pregnant Princess Sofia attend Global Child Forum

Princess Madeleine of Sweden has been taking it easy since welcoming her second child, Prince Nicolas, in June, but the loving mother couldn't resist putting her maternity leave on hold for an engagement to benefit children. The devoted royal joined her pregnant sister-in-law, Princess Sofia, at the Global Child Forum.

Madeleine had flown in from London, where she is currently based with her husband Chris O'Neill and the couple's two children, to support the cause close to her heart.

The annual forum works to create a better future for all children and is held at the palace under the direction of Madeleine's parents,King Carl XVI Gustaf and Queen Silvia.

TAP TO VIEW FULL GALLERYThe Swedish princesses attended the Global Child Forum in Stockholm.

The royals were out in full force to champion the event and each took part in different sessions including speeches and workshops.

Read More: Princess Sofia's maternity style

Madeleine, 33, channelled business chic in black trousers and a cream blouse, topped off with an on-trend black cape. Taking inspiration from the Duchess of Cambridge, Madeleine had her glossy locks styled into a perfect blow-out.

Sofia showed little sign of pregnancy,hiding her bump under a teal asymmetrical top paired with black trousers and ankle boots.

Princess Madeleine, who now lives in London, rejoined her family at the conference.

The princess, who is due in April 2016, married Madeleine's brother, Prince Carl Philip, in June – just two days before Madeleine gave birth to her baby boy.

The sisters-in-law may well have swapped pregnancy experiences and Madeleine, who has two children under two, likely offered Sofia advice on becoming a first-time mother.

The main topic of discussion of the day, however, will have been on the less-privileged children around the globe.

Each year, the Global Child Forum brings together 400 leaders from the worlds of government, business and civilian society. It involves speeches, networking sessions, a luncheon and workshops; this year's theme is Children's Rights Within the Corporate Sustainability Agenda.

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