Thanks for your reply Duke
The King walked with the Infanta Pilar at Felipe's Wedding,Margarita walked with her husband,but that was 7 years ago
We do often see Queen Sofia with Pilar & Sofia,but very rarely The King.I just found it odd that he never invites them to Royal events & why is it always The King,Queen,Prince & Princess.I can't remember the last time I saw Elena either at a Gala Dinner in honour of a Foreign dignitary or Royal guest.
When you look at other Royal Families they don't exclude the older members (eg Princess Lillian of Sweden up until recently,Pss Astrid of Norway ect)
I just find that rather strange that the Infantas are almost never present at Gala's/Banquets ect!