A relative took these pictures while vacationing in Mallorca. Do you have an idea what this is?

Looks like Byzantine Gladiolus (Gladiolus x byzantinus) or a relative.

Gladiolus, I agree. I've seen them growing wild in the Iberian peninsula. The book Flowers of the Mediterranean by Polunin and Huxley list four, Gladiolus segetum, G. byzantinus, G. communis and G. illyricus. This is an old edition of the book (1972) so the names aren't necessarily current. I think byzantinus is now communis subsp. byzantinus, for example.

G. byzantinus, synonym for G. communis
or G. italicus

Thanks so much! You are all terrific, that's it!!