Siegniorial or Seigniorial: How To spell?

The word Siegniorial is misspelled against Seigniorial, an adjective meaning "Same as Seigneurial."

Word contains consecutive vowels 'EI' in between alphabets s & gniorial is misspelled as 'IE'
Wrong Spelling:  s-ie-gniorial 
Correct Spelling:  s-ei-gniorial 
Find more incorrect spellings of Seigniorial to spell right way.