History of the Palace of Versailles but was never finished due to the king's death. Significant among Louis XV's contributions to Versailles were the "petit appartement du roi"; the "appartements de Mesdames", the "appartement du dauphin", the "appartement de la dauphine" on the ground floor; and the two private apartments of Louis XV – "petit appartement du roi au deuxième étage" (later transformed into the "appartement de Madame du Barry") and the "petit appartement du roi au troisième étage" – on the second and third floors of the palace. The crowning achievements of Louis XV's reign were the construction of the Opéra and the Petit Trianon.
Trianon (sorority) traditions to carry on through the years. O, Trianon, in you we do believe. (Trianon Key) The pledge pin ""is of royal blue equilateral triangle each side of which forms part of the base of a gold obtuse angled triangle. This pin is symbolical of the three founding units of the national organization. The blue is for loyalty to school and all things true, and gold is for golden deeds"". (Trianon Key) The membership pin ""is a yellow gold chevron-like base supporting a cluster of peaks upon which the letter T is superimposed. It may be plain or jeweled as