While visiting Tŷ Hafan in South Wales on Jan. 30, Kate Middleton was, as ever, at ease with children, with one parent telling PEOPLE of the Princess of Wales, “You can tell she is a mom.”

Earlier this week, Kate Middleton made a solo appearance at a children's hospice facility—in a $20 Zara dress —that had a sweet connection to Princess Diana. And it seems during her visit to Tŷ Hafan children's hospice, the princess fully embodied her late mother-in-law 's best qualities.

Tŷ Hafan's chief executive said they were "deeply honoured" by the appointment Catherine, Princess of Wales has been named patron of a children's hospice on a visit to south Wales. She visited Tŷ Hafan in Sully,

During a Jan. 30 visit to children’s hospice Tŷ Hafan in South Wales, Kate Middleton “stayed much longer than we expected” for “the most inspiring visit,” sources tell PEOPLE.