You reminded me to check and confirm what you say. In this WinterisComing post, it is said that Ryan says, “Young Joffrey is around 6 or 7. As for the other kids, showrunner Ryan Condal says they’re all in “the 17-21 age range.” As if that helps things at all.... In this Elle article, we see the writer themselves not really knowing what’s happening. So I had to buckle up and do some....math (dun, dund\, dun).
By episode 2, we hear Viserys say that Rhaenyra is 15 and in the very beginning -- with a black screen -- we find out that the show’s events occur 172 years before 284 A.C. when Daenerys was canonically born.
So we are supposed to be in 112 A.C when Viserys is hosting a tourney for his soon-to-arrive son Baelon. Rhaenyra is still 15, but Alicent’s been aged down to match her (when she would have been already married to Viserys I for 6 years by then [in canon, they marry at 106 A.C., when Alicent is 18 and Viserys is 29/30]).
These are the Book Ages at 112 A.C.:
- Rhaenyra - 15
- Alicent - 24
- Viserys I - 35
- Daemon - 31
- Criston - 31
- Laena - 20
- Laenor - 18
- Rhaenys - 38
- Corlys - 59
- Otto - 36
And the Book Ages at 131 A.C. (end of the Dance):
- Rhaenyra - 33*
- Viserys I - 52* (age by death)
- Alicent - 42/43
- Daemon - 49*
- Criston - 49*
- Otto - 55
- Laena - 27*
- Laenor - 26*
- Rhaenys - 55*
- Corlys - 78
- Baela - 15
- Rhaena - 15
- Aegon (II) - 24
- Helaena - 21*
- Aemond - 20*
- Daeron - 16*
- Jacaerys - 16*
- Lucerys - 14*
- Joffrey - 13*
- Aegon (III) - 10
- Viserys (II) - 8
The Show Ages at 111-2 A.C. for everyone is the same as canon except Alicent, who is 15. She and Show!Viserys marry episode 2, where Rhaenyra and Alicent are still 15.
Three years pass after episode 2 and Alicent is heavily pregnant with Helaena and has already had Aegon the Elder, who Viserys says is 2 years old.
Since Alicent is aged down 9 years, her children are aged back.
So by episode 3/115 A.C., the Ages are:
- Rhaenyra - 18
- Alicent - 18
- Viserys I - 38
- Daemon - 34
- Criston - 34
- Laena - 23
- Laenor - 21
- Otto - 39
- Rhaenys - 41
- Corlys - 62
- Aegon (II) - 2
It’s only a few months to episode 4. Helena is an infant, Aegon is maybe still 2 or he’s 3 in episode 5. None of the Velaryon boys exist yet.
Episode 5 passes straight after the events of episode 4, so the things of episodes 4 and 5 all happen in under a year.
However, canonically by 115 A.C, Aegon the Elder is 8; Helaena is supposed to be 6, and Aemond is 5, and Daeron is supposed to be around 1.
Jacaerys is supposed to already exist and is 1 here not long after the events of episode 5.
By episode 6, 10 years pass and it is 125 A.C.
Laena and Laenor are both supposed to be dead by 120.
The Ages in 125 A.C./episode 6 are:
- Rhaenyra - 28
- Alicent - 28
- Viserys I - 48
- Daemon - 44
- Criston - 44
- Otto - 49
- Rhaenys - 59
- Corlys - 72
- Aegon (II) - 13
- Helaena - 12
- Aemond - 8/9 (nothing is given, we just have to go by canon-inspired subtraction/adjustment)
- Daeron - 4/5 (???!!! and he’s supposedly in Oldtown at that age?!)
- Jacaerys - 6-10 (we’re not given a specific bday in the show)
- Lucerys - 5-9 (we’re not given a specific bday in the show)
- Joffrey - 0 (freshly born)
Rhaenys says she last saw Corlys 6 years ago in episode 8. The Ages in 131 A.C./episodes 8 - 10 are:
- Rhaenyra - 34
- Alicent - 34
- Viserys I - 54
- Daemon - 50
- Criston - 50
- Otto - 55
- Rhaenys - 65
- Corlys - 78
- Aegon (II) - 19
- Helaena - 18
- Aemond - 14/15
- Daeron - 10/11 (he’s still supposedly in Oldtown?!)
- Jacaerys - 12-16 (we’re not given a specific bday in the show)
- Lucerys - 11-15 (we’re not given a specific bday in the show)
- Joffrey - 6
- Aegon (III) - ~ 2
- Viserys (II) - ~ 1
Again, since Ryan Condal and the other writers changed the age for Alicent and basically moved everything forward, this is the result of what the ages were. I used the canon ages and calculated when I could. Let me know of anything to consider changing.