Joëlle
realrollo-koster.bsky.social
Joëlle
@realrollo-koster.bsky.social
Medieval historian , professor emerita of medieval history at the University of Rhode Island, specialist of the cultures of the Avignon papacy and the Great Western Schism. Interested in all things medieval.
Pope Leo gave a Golden Rose to Lourdes, I had to say something:
theconversation.com/what-1-000-y...
What 1,000 years of golden roses tell us about popes’ authority and influence, from Leo IX to Leo XIV
Popes have bestowed golden roses on warriors, rulers, women – and, increasingly in recent decades, shrines.
theconversation.com
October 5, 2026 at 12:21 PM
excellent post.... getting no traction....
www.nytimes.com/2026/08/04/o...
Opinion | I’m Begging You: Never Write With A.I. (Gift Article)
It’s bad for your brain and worse for democracy.
www.nytimes.com
August 11, 2026 at 11:58 AM
more work on smell, this time the papal Golden Rose, appears in the August issue of the prestigious Burlington Magazine, including the cover.
August 2026
Vol. 168 | No. 1481
August 3, 2026 at 11:25 AM
My new article on the use of musk (fragrance) at the medieval papal court is out.
storicamente.org/rollo-koster...
Musk at the Papal Court in the Middle Ages
Questo articolo indaga l’uso cerimoniale del muschio alla corte papale, concentrandosi sul suo ruolo nelle principali tradizioni liturgiche dal Medioevo alla prima età moderna. Il muschio, un aroma ra...
storicamente.org
July 31, 2026 at 7:09 PM
My response to everything I read in April on the Avignon papacy ...and made my eyes roll...
bsky.app/profile/medi...
May 16, 2026 at 8:48 PM
My long view on pope vs king/president
“Trump's clash with the pope reenacts a 1,000-year-old question: What happens when sacred and secular power collide?”
theconversation.com/trumps-clash...
Trump’s clash with the pope reenacts a 1,000-year-old question: What happens when sacred and secular power collide?
From its earliest centuries, Christianity was bound up with politics, with frequent tensions between government power and religious authority.
theconversation.com
April 15, 2026 at 12:50 PM
Starting a series on Medievalists.net to highlight the books that framed the new medieval historiography. I started with Marc Bloch's Feudal Society

www.medievalists.net/2026/04/marc...
April 13, 2026 at 4:04 PM
My girl was watching the news on Hungary's election....and then celebrated!
April 12, 2026 at 9:41 PM
For anyone who has read about the Pentagon's use of the "Avignon Papacy" against the pope....THEY KNOW NOTHING ABOUT THE AVIGNON PAPACY. And the journalists reporting on it even less. I know about the Avignon papacy....and I am pissed that it is weaponized.

newrepublic.com/post/208820/...
Pentagon Threatened the Pope After He Criticized Trump
It was so bad that Pope Leo changed his plans to travel to the U.S.
newrepublic.com
April 10, 2026 at 10:19 PM
Why do I think Nazi architecture when I see this? and being French I should think Arc de Triomphe?
April 10, 2026 at 10:09 PM
The only happy happy living in RI right now...never seen that much snow....
February 23, 2026 at 5:13 PM
Notre Dame January 2019 and June 2025. From roughly the same spot across the Seine River. She is still standing. Thats the most important.
January 26, 2026 at 5:11 PM
Now Sénanque...I have nothing recent from the Thoronet....
January 22, 2026 at 8:42 PM
Silvacane...so sorry for yesterday's mistake!
January 22, 2026 at 7:50 PM
Sanary sur Mer....
December 27, 2025 at 10:25 AM
Continuing on the medieval potato, in today's "news world" why not! if we repeat an untruth long enough it becomes truth right?

Here, the add for "Medieval Times..."
November 20, 2025 at 7:52 PM
I was really looking forward to King and Conqueror...and then, episode 2, at around 28 minutes, appeared...the medieval potato...to accompany rabbit. Ragout de lapin aux pommes de terre à la manière de Flandre!
November 19, 2025 at 12:44 PM
Windows are the No. 1 human threat to birds – an ecologist shares some simple steps to reduce collisions
theconversation.com/windows-are-...
Windows are the No. 1 human threat to birds – an ecologist shares some simple steps to reduce collisions
Cats aren’t the only bird hazard around your home. More than 1 billion birds die each year from hitting windows, often during migration.
theconversation.com
May 21, 2025 at 3:41 PM