| Year | Population (billions) | Number of Inhabited Worlds |
| 2103 CE | 0.006 | 3 |
| 2153 CE / TE 0 | 1.3 | 8 |
| 2203 CE / TE 50 | 9.9 | 21 |
| 2253 CE / TE 100 | 37 | 45 |
| 2303 CE / TE 150 | 67 | 81 |
| 2353 CE / TE 200 | 214 | 266 |
| 2403 CE / TE 250 | 378 | 520 |
| 2453 CE / TE 300 | 754 | 909 |
| 2503 CE / TE 350 | 1004 | 1210 |
| 2553 CE / TE 400 | 1081 | 1410 |
| 2603 CE / TE 450 | 1059 | 1400 |
| 2653 CE / TE 500 | 1073 | 1430 |
| Years (TE) | Title | Name | Other |
| 36 - 57 | Admiral | Donna Castiligoni | Commander of Imperial Navy Base on Neordan |
| 57 - 88 |
Captain First Duke (after 63) |
Mark Castiligoni | -- |
| 88 - 125 | Second Duke | John Castiligoni | -- |
| 125 - 135 | Third Duke | Lewis Castiligoni | -- |
| 135 - 163 | First Duchess | Jessica Castiligoni | -- |
| 163 - 187 | Fourth Duke | Ian d'Herelle | -- |
| 187 - 220 | Second Duchess | Jane d'Herelle | -- |
| 220 - 246 | Fifth Duke | Philip Churchill | -- |
| 246 - 249 | Third Duchess | Trina Churchill | -- |
| 249 - 265 | Sixth Duke | William Churchill | -- |
| 265 - 296 | Fourth Duchess | Karen Churchill | -- |
| 296 - 334 | Fifth Duchess | Selene Churchill | -- |
| 334 - 350 | Seventh Duke | Edward Adelhardt | -- |
| 350 - 371 | Eighth Duke | Derek Adelhardt | -- |
| 371 - 407 | Ninth Duke | William Adelhardt | -- |
| 407 - 471+ | Sixth Duchess | Heather Adelhardt | -- |