Originally Posted by An Ard Ri
I didn't know that and I'd say most royal watchers know her as Princess Léa and not Princess Alexandre of Belgium.
Belgian Court confusion as usual
Yes, I sometimes wish the many royal watchers who study and memorize the correct titles of the British Court would devote the same efforts to the titles of other courts.
Per the current rules, "Princess Léa" and "Princess Alexandre of Belgium" are both correct styles, however, "Princess Léa of Belgium" is incorrect as only women who legally are princesses of Belgium are officially referred to as "Princess [own given name] of Belgium".
For example, Amedeo's wife Elisabetta (who is in the same situation legally) was styled Princess Elisabetta Rosboch von Wolkenstein, not Elisabetta of Belgium, when her son's birth was announced last year