Paphiopedilum or Phragmepedium with largest flower

[HiOrcDen]

So I really like the Paphiodpedilums with very large flowers, such as the Hilo Black Eagle. I am curious whether someone knows, is this the Paphiopedilum and/or Phragmepedium indeed with the largest sized flowers (not plant size) or are there still larger flowered species?

I know that the Paphiopedilum Sanderanium of course has the extremely long trailing petals, but I am seeking one with the biggest main fleshy body of the flower.

Is it the Hilo Black Eagle, or another?