
• (n.) The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the accession of his father to the throne, was preferred to an elder son who was not so born.
Found on
http://thinkexist.com/dictionary/meaning/porphyrogenitism/
Por`phy·ro·gen'i·tism noun [ Late Latin
porphyro genitus , from Greek ...; ... purple + root of ... to be born.] The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the accession of his father to the throne, was preferr...
Found on
http://www.encyclo.co.uk/webster/P/130
No exact match found.