Random thought, but in Delita's version of the story, how many of his political rivals/opponents/"allies"/contemporaries are getting Off-Screened by "a Screaming Heretic?"
If you remove "contemporanies" from that list, it's just the Beoulve brothers and Funebris + the Templars.
Delacroix was killed by Ramza, but officially, that was never confirmed - the reasons behind Ramza's accusation of heresy were never cleared. Delita was not made aware of what was going on with Delacroix' side of the conspiracy, he was just given Ovelia and sent to handle the Goltana side; for all Delita knows, Folmarv killed Delacroix once he was no longer necessary, or he might have pinned that on Agrias without knowing that she was with Ramza at the time. So... if you were playing the story as Delita, you'd get the information that Delacroix died, scoff a little at the "of illness" motivation, and be wondering who the culprit was. Ramza would be a suspect, but not the only one.
Next is the fight at Orbonne, and nobody related to Delita died there; also, Delita probably suspected that this was just the Templars "cleaning house" of people who might reveal the truth of Ovelia's past now that she was installed as Queen, and they just used Ramza as a scapegoat.
After that is Barinten. That, Delita probably believes was Ramza's work, but Barinten was not an ally or rival of Delita; he was an independent actor who was, as far as Delita (and anybody else) knew, staying out of the war. From an outside perspective, it'd look like Ramza went to Barinten to ask for his support, maybe with cleaning himself of the Heresy accusation or maybe to have Barinten support him in whatever plan Ramza has; Delita will believe Ramza has some plan, but will hardly know what that is, so seeking support of the one person that stayed out of the war is plausible. Then something went wrong with the negotiations, and Ramza murdered the castle - Delita would likely see this as "Barinten tried to arrest Ramza and sell him to the church and Ramza defended himself", if he gave the matter any thought. In any case, as mentioned, Barinten isn't an ally or an enemy, just a neutral third party at the time he gets killed.
Delita killed Zalmo himself, or rather, he watched as Hadrian killed him on Ramza's behalf, but he would totally have done it himself, so that's not really an "offscreen death"; you'd be fighting that battle in a Delita storyline, only with Ramza playing as the guest.
After that, Delita has intimate knowledge of what happened at Besselath, and he know Ramza wasn't involved in any of the backstabbing there.
Ramza's journey to Limberri likely isn't recorded anywhere as, according to popular opinion, Elmdore had died in battle months before; so neither Delita nor anybody else would know this went down, only the Lucavi and Ramza's stalker Meliadoul.
And then there is the Beoulve fratricide and the assault to Mullonde; those would definitely be reported as Ramza work, and Delita would know it was.
So, from Delita standpoint, he last saw Ramza at Warijilis, and then Delacroix died - clearly murdered, but by whom is hard to say. Then Ramza had a tussle with Zalmo in Lesalia, but nobody died there, and was then said to have slaughtered Orbonne, but if you're Delita, you've reason to doubt that; then Ramza exterminated Riovanes, likely after seeking help there and having to defend themselves; and finally, with both his brother in Lesalia and Barinten at Riovanes refusing to help him end the war, he comes to you at Zeltennia, and states he wants to talk to Orlandu as well.
You tell him you also want to end the war, and that, as part of your plan to do it, you'll kill the church leadership; you also point out that Ramza's brother will need to die for the war to be ended, but that's being handled by somebody else. Then that somebody else fails, killing only Larg, and Ramza goes and offs both the Beoulve brothers and the church leadership for you; for Delita, master manipulator, this looks like he just managed to persuade Ramza to do his dirty work for him.
That's how I think the narrative from Delita's point of view would look like.