There are a few that look similar that I have found, but I still think I reichenbachii.
Iris attica flower can look the same except it is virtually stemless, with their floral tub coming from the base of the plant.
Iris suaveolens has the same shape. It can easily grow straight leaves in an unnatural environment, but when grown in more austere conditions, leaves will be strongly falcate. In my experience, suaveolens never has even close to the length of flower stem that yours does. However reichenbachii does. Reichenbachii is more often with a netted color pattern, too, and the mix of colors is common. Yours is quite nice. When I hybridize yellow with purple, I get a lot of very drab and dirty coloring.
