I live so far from the life of people who buy couture that it never occurred to me that couturiers made underwear in the 1920’s. This little article from June, 1929 shows a royal bride, plus trousseau lingerie from the Houses of Worth, Doeuillet-Doucet , Philippe et Gaston, and Rouff.
I already wrote about the white chiffon velvet wedding dress made for Princess Francoise of France (click here.)
This bridesmaid dress by Ardanse was not necessarily part of the royal wedding , nor were all the designer lingerie pieces sketched.

Bridesmaid dress by Ardanse. “Green taffeta with the yoke, tiny sleeves and skirt of tulle.” June 1929.
Below, left: “The wedding nightgown of white crepe de Chine trimmed with Milan lace is netting edged. By Rouff.”
The nightgown by Maggy Rouff is surprisingly un-sexy (but perhaps the Princess was modest.)
“Pale pink crepe de Chine and pantalon for the going-away lingerie set.” Doeuillet was a known design house, and so was Doucet. When Doucet died in 1929, Doeuillet took over the house of Doucet; that explains the hyphenated name.
This similar set, probably not couture, was not labelled, but very elegant:
Note the crotch fastened with buttons. I think of wide-legged undies like these as “tap pants,” since they resemble dancers’ rehearsal shorts from the twenties and thirties. Separates were replacing “combinations” or “Teddies” as waistlines returned to late nineteen twenties and early thirties dresses.
“The bride slips this pale pink satin jacket over her night-dress for the ‘petit dejeuner’ in bed.” Married women were allowed to eat breakfast in bed — a luxury denied to the unmarried daughter or houseguest. [Source: The World of Downton Abbey, by Jessica Fellowes.] Bed jackets were a common gift item, useful because a long robe would have been uncomfortable under the blankets, but even Great Houses and hotels were not well heated.

Chemise-pantalon (a teddy) by Doeuillet-Doucet, right; left, a long wrapped chemise that ties in the front, by Philippe et Gaston. Sketched for Delineator, June 1929.
The teddy — an all-in-one, step-in undergarment, would have had a crotch strap; the “trousseau chemise” that ties in front strikes me as a very impractical garment to wear under clothing — the bow would create a bulge — but is certainly trousseau-worthy for wandering around the honeymoon suite. (It almost seems designed to slip off gracefully….) The House of Philippe et Gaston rose rapidly in the 1920s. (See a fashion plate here.)

This pale green, tucked teddy has a a crotch strap, barely visible. It stops at the edge of the netting lace.
Netting lace and tucks were both used on the wedding nightgown illustrated above.
I personally love the use of “cafe au lait” colored lace on vintage lingerie — and, of course, it could give the illusion of nudity under sheer dresses, depending on your skin tone.
The extraordinary Vintage Textile website has exquisite 1920’s garments for sale; after an item is sold, its photograph is moved to the Gallery, where we can enjoy it for years to come (Thank you!) Click here for the 1920s Gallery.
A sample from the Vintage Textile Gallery: “France, 1925.”
Details of another lovely piece of lingerie attributed to Maggy Rouff can be seen here. Another famous twenties Fashion House was Boue Soeurs. See an example of their work by clicking here.
For dessert:
A step-in teddy from Pinterest…
… And a black peignoir from 1925, at the Vintage Textile Gallery– you really should take a look at Vintage Textile.com! It’s not just 1920’s clothing. Who knows what you might find in their “Treasure Hunt” pages!