ordinal phrase

1) a Roman numeral in the postpositive title phrase and giving the position in a chronological series of persons having the same name a) in a genealogical lineage, where it appears as an alternative to the comparative adjective designating a number greater than two, and b) in the order of heirs acceding to a particular position (and title); the o. p. consists in a possible article in front of the ordinal form of a number and is followed inevitably with a comma; After the European custom, the o. p. may contain an ordinal marker (period) following the Roman numeral or it may follow a Hindi-Arabic digit; the o. p. is introduced in PS-RULE [PS12] and described in [PS13]; 2) a Roman numeral appearing in PS-RULE LP8 as a partial realization of the epithet