Unknown Tulip

[Uli]

During a trip to central Portugal, I came across this field of tulips. My attention was raised because I saw people with bunches of cut flowers and when I saw the place it looked like red poppies at first glance. Unfortunately a lot of the plants were trampled on, the whole site looked like cultivated land. Most of the flowers were spent but I managed to photograph a fairly good one. They were about 60 to 70 cm tall and the leaves looked like garden tulips. I thought of Tulipa sprengeri but it does not have a blotch. Flora-on which covers practically every plant in Portugal only lists T. sylvestris as native. An old hybrid gone wild?
Thank you for your help 

[CG100]

I have no idea what it is, and am no fan at all of cultivated ones, although I do like some/most of the hardy small species. But that looks impressive, whatever it is.