I've noticed that many board members, when considering the style of first-class suites and staterooms aboard the 'Titanic' and '
Olympic', use 'Regence' and 'Regency' interchangeably. In political terms, the two words, French and English respectively, do indeed mean much the same thing. But, from a decorator's perspective, they are two quite distinctive styles and should not be confused with one another.
'Regence' relates to a style in vogue in France during the early part of the eighteenth century. Louis XV (1710 - 1774) was but a small child when he came to the throne and, until he reached a suitable age to govern, the Duc d'Orleans (nephew of Louis XIV) acted as Regent on his behalf. During his rule, there was a shift towards what would eventually flower into the exuberant rococo style, when curved lines and motifs such as shells, masques, and sinuous foliated scrolls were introduced. Cabriole legs became popular, the use of ormolu became more wide-spread and walnut, rosewood and other woods largely replaced the ebony veneers so extensively used during the previous reign.
'Regency' style, on the other hand, refers to furniture and decor in fashion in the early part of the nineteenth century. Owing to the periodic insanity of his father, George III, the Prince of Wales was appointed Regent in 1811 and ruled as such until his accession as George IV in 1820. However, it could reasonably be said that the key elements of what we now think to be the typically 'Regency' style had been in place since 1800-1805 and remained in evidence well into the 1830s. Furniture characteristic of this period remained neoclassical in feel and appearance although, as the years went on, it became heavier and more ponderous, lavishly upholstered and encrusted with gold-leaf. In this respect, it mirrored the 'Empire' style favoured by Napoleon and Josephine across the Channel. In addition, there was a revival of interest in the antique, with Greek designs becoming particularly popular under the auspices of Thomas Hope. Motifs inspired by India, China and other cultures perceived in the West to be 'mysterious' or 'exotic' also crept in.
It is quite possible, therefore, that there were cabins aboard the 'Titanic' in both the 'Regence' and 'Regency' styles and that they would have been strikingly different in appearance.
As for 'Old' and 'Modern' Dutch...well, I confess myself at sea here! I've never come across these terms used in relation to furniture or interior design anywhere else. What the main characteristics of these styles might be, I have no idea. Period French and English decor has gone in and out of fashion throughout the past three centuries...but Dutch?