Mr. Romeo MananQuil, the banknote’s designer himself, noted in his site
that in the late 1985, his 500-peso Marcos bill was slated for
production. However, when a snap election was scheduled, the circulation
of the newly printed bills was put on hold in deference to the law
against electioneering as Marcos.
"President Corazon Aquino soon ordered the redesign of the bill to
honour her husband, Senator Benigno “Ninoy” Aquino whose 1983 slaying
became the catalyst for change and the new democracy’s rallying cry for
the overthrow of Marcos. Though I was once again tasked with the
redesign of the bill, my family’s move to Canada prevented me from
taking on the assignment." - Romeo Castillo MananQuil.
Remember the saying: History is written by the victors.