The pursuit of knowledge and education are things that flourish in times of peace. While most dominions are devoted to their own personal contemplation, the Throne of Knowledge maintains the University of Syrania, where chosen students can study an astonishing array of subjects with virtues of knowledge and the occasional guest dominion. The catch is that students need to be admitted . . . and there isn’t actually a process for applying. At the moment, the University only has twenty students, chosen from across the planes by roaming virtues.
For planar travelers who come to Syrania, the University is a good repository of general knowledge; if the scholarly virtues can’t help, they’ll likely know the way to a dominion that can. It’s also an unusual background for a player character; perhaps a Divine Soul sorcerer unlocked their powers at the University, or perhaps a warlock’s Celestial patron is their thesis advisor. And it’s a very exotic option for a university group patron . . .