100259
Name It 's named ultimately after the Roman empress Galla Placidia and , also , after a Catalan Opera based on her life , written in 1913 by Jaume Pahissa .
 Galla Placidia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Galla Placidia