Not in the history books that I've read.
My Mother is both a Savoy (of the House of Savoy - a Northern Italy/Southern France kingdom that was independent for many centuries) and Navarre, a French noble family from S.W. France. My mother's genealogy research shows no special relationships, treatment or culture once they reached North America. In fact, my great grandfather made a living during the late part of the 19th and early part of the 20th century poling a perogue (small, flat bottomed boat) collecting moss from trees in the bijou to be used for stuffing mattresses and furniture. Not very royal-like if you ask me!