The Pro-Marcos Supporters Rally was happened after the EDSA Revolution . They want Ferdinand Marcos to bring back in Malacañang.
References
edit1. https://www.nytimes.com/1986/04/14/world/thousands-rally-for-marcos-in-manila.html
2. https://www.latimes.com/archives/la-xpm-1986-09-15-mn-11812-story.html
3. https://www.orlandosentinel.com/1986/04/14/10000-marcos-loyalists-rally-against-aquino-rule/
4. https://www.upi.com/Archives/1988/10/28/Laurel-joins-1000-Marcos-supporters-at-rally/2716594014400/
5. https://www.nytimes.com/1986/04/28/world/marcos-addresses-philippine-rally.html
6. https://www.newspapers.com/article/the-akron-beacon-journal-marcos-loyalist/13696503/