Recall Pope Francis dissolved the Knights of Malta
 
https://www.reuters.com/world/europe/pope-dissolves-knights-malta-leadership-issues-new-constitution-2022-09-03/
 
The "Black Pope" was the head of the Jesuits. Francis was a Jesuit from Argentina
 
The Knights of Malta maintain a distinct identity and operate independently, with their own leadership and governance structure. They are led by a Grand Master and have a sovereign status recognized by international law, though they do not possess a territory.
 
The organization's current Grand Master is Pope Francis, who has been involved in efforts to modernize the Catholic Church and address internal conflicts within the Order of Malta. These conflicts have included disputes over the use of condoms in humanitarian projects and the influence of Freemasonry within the Order.
 
In summary, while the term "Black Pope" is not directly linked to the Knights of Malta, the organization has a complex relationship with the Vatican and has been involved in significant internal disputes under Pope Francis' leadership