Where does “mediatizar” come from?

mediatizar (Spanish) comes from Spanish mediático, from Spanish media, from Latin Mēdia, from Ancient Greek Μηδία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

mediatizar (Spanish): to mediatize/mediatise