Johanne Henriette Valentine Danneskiold-Samsøe née Kaas (12 August 1776 – 28 July 1843) was a Danish countess who, when widowed, fulfilled her former husband's plans by founding the Holmegaard Glass Factory near Næstved in 1825.
[4][5] She was educated at home together with her sisters by the tutor Peder Deichmann with whom she corresponded actively until his death in 1816.
[3] Living on the large Gisselfeld Estate, they entertained the leading writers of the day, including N.F.S.
[6] In the 1820s, after acquiring the Holmegaard estate, he planned to create a glass factory there as he realized the local peat could be used as fuel.
He requested permission from the king to go ahead with his plans in 1823 but died before receiving an answer.