Another less famous `` conquest '' took place in NUMBER@1 , when PERSON@1 , de jure Emperor of the LOCATION@1 , left PERSON@2 and PERSON@3 as heirs to the empire , thus PERSON@2 became de jure Imperator Constantinopolitanus .

Another less famous `` conquest '' took place in NUMBER@2 , when PERSON@1 , de jure Emperor of the LOCATION@1 , left PERSON@2 and PERSON@3 as heirs to the empire , thus PERSON@2 became de jure Roman Emperor .
