It is a Missoni dress, isn't it? Nice, but I absolutely adore the black dress...
About her perfect delivery of a speech: She is extemely good at that, but then again this is something she has alwas been good at, so good in fact that she made a career out of it. And it shows.
The dress is from a small Spanish brand Michonet. In recent months, Letizia has been wearing small and little-known Spanish brands, which produce few garments and which mostly sell on the Internet or have small local stores.