Malvina De la Gardie served as statsfru (lady of the Bedchamber) to Queen Louise in 1863-1871.
She became a personal friend of Sophia of Nassau when the latter arrived in Sweden in 1857, and was therefore appointed to the position of överhovmästarinna (Mistress of the Robes) in 1880.
As senior lady-in-waiting, Malvina De la Gardie could represent the queen on minor social occasions and events.
As queen Sophia seldom participated in high society life after the 1870s, preferring to devote her time to charity and religion, De la Gardie was often assigned to represent her at balls and similar events in high society life.
Malvina De la Gardie was described as a kind and well-tempered figure with a good-humoured disposition, who very much enjoyed court life and her own position in it: She retired for health reasons in 1890.