The moment I've been waiting for. Imagine some poor lord finding this all out and then realizing that Stannis of all people was clearly informed months beforehand.
There's actually quite a few people in this Curia session who are already aware of things, probably more than people present would expect.
Could probably even sum it.
Sec...
1 Qyburn (got up to speed somewhere along the way, too many points in time it could have happened to guess when)
2 Relath Toloresys (extraplanar immigrant)
3 Rhaella Targaryen (inner circle)
4 Salladhor Saan (informed in large meeting)
5 Sandor Clegane (would've been brought up to speed after firmly falling into inner circle)
6 Shad Ibn Mal (extraplanar immigrant)
7 Stannis Baratheon (informed in personal meeting)
8 Teana Strycos (inner circle)
9 Theon Greyjoy (no reason not to have prepared him by this point, even if literally just before the session)
10 Tyrael "the Tireless" (extraplanar immigrant)
11 Uthero Agrelys (informed in large meeting)
12 Valens of Andalos (former Inquisitor)
13 Vargo Alexi (no reason not to have prepared him by this point, even if literally just before the session)
14 Vee (inner circle)
15 Monford Velaryon (informed in large meeting)
16 Doran Martell (informed in large meeting)
17 Oberyn Sandviper (informed in large meeting)
18 Zherys Naethyreon (informed in large meeting)
19 Yrael Elaenos (extraplanar immigrant)
20 Ferrego Antaryon (informed in large meeting)
21 Aemon Targaryen (no reason not to have prepared him by this point, even if literally just before the session)
22 Alinor Torchwood (informed in large meeting)
23 Gerold Torchwood (informed in large meeting)
24 Asha Greyjoy (no reason not to have prepared her by this point, even if literally just before the session)
25 Brynden "Bloodraven" Rivers (Chosen of the Old Gods)
26 Chesed (extraplanar immigrant)
27 Garin Drekelis (inner circle)
28 Iziku of the Deep (extraplanar immigrant)
29 Javad Rahbar (extraplanar immigrant)
30 Malarys Vanor (inner circle)
31 Marwyn (either informed by this by any number of people he's been in proximity of, or already well aware because he's an OG mage)
32 Menel Goldentooth (informed in large meeting)
33 Netzachel (extraplanar immigrant)
34 Roose Bolton (Qyburn is still interacting with him here and there, and has all the tact of a cannon broadside, would have dumped this on him by now)
35 Yohn Royce (no reason not to have prepared him by this point, even if literally just before the session)
36 Aricho Sereah (Headmaster of Scholarum)
37 Denerro Melolla (Headmaster of Scholarum)
38 Dileah Noroquo (Headmaster of Scholarum)
39 Hasaro Sireyana (Headmaster of Scholarum)
40 Horio of Tyrosh (Headmaster of Scholarum)
41 Sarah of Pentos (Headmaster of Scholarum)
42 Moqorro (Headmaster of Scholarum)
That's nearly three dozen people who won't react with shock at this news. Which will be
telling to those who are floored by it, considering that's like having one quarter of the current Curia membership being either completely unsurprised, mildly uncomfortable, or only semi-jittery depending upon when they were brought up to speed.
Edit: We also voted to have all the Headmasters informed, and to get most mages ware by the time they graduated from Scholarum courses, so this should actually include all of the Headmasters, not just Teana, so over forty people know what's going on.