Aragorn's Letter to Samwise (SD:128-129) in Akkadian

Aragurni apil Arašurni
Aban-Edellī
šar Guddurim u Arnurim
bēl mātī erāb šamšim
iqerrib ana gišir Baradduin ina samnam Ayyarimma
kīma minīt Eqlim ina šanâm dīšim

Ullīkiam liddin šulmam ana ibrā kalâšum
issu pūte līmar rubâm Mišil-Eršumma
ša Mali-Eršum libbû
ribiānum Eqlim
u Amurdinnī aššatam
u Kakkab-Šamaš u Amurdinnī u Šartum-ša-ḫurāsi u Awilti-Nūrim mārātīšu
u Atraḫasis u Ḫadûm u Šaḫšurum u Ina-Bītam-Kânum mārīšu

Ana Mišil-Eršum u ana Amurdinnī šulmum ina pī šarrim išti Dimat-Nuṣrim
šalāšûm ina Nisānam

Back translation by ChatGPT 4:

Aragurni, son of Arašurni,
Aban-Edellī,
king of the Guddurim and the Arnurim,
lord of the lands from the setting of the sun,
approached the fortress (or bridge) of Baradduin in the month of Ayyar,
as in the proper reckoning of the land in the second year.
May Ullīkiam grant peace to all his allies.
May the prince Mišil-Eršum behold (him) face to face,
he whose heart belongs to Mali-Eršum,
the governor of Eqlum,
and Amurdinnī his wife,
and Kakkab-Šamaš, Amurdinnī, Šartum-ša-ḫurāsi, and Awilti-Nūrim, his daughters,
and Atraḫasis, Ḫadûm, Šaḫšurum, and Ina-Bītam-Kânum, his sons.
To Mišil-Eršum and to Amurdinnī: peace, by order of the king, from Dimat-Nuṣrim,
on the third day of the month of Nisan.

After the hint that it's about the Lord of the Rings, the translation becomes:

Aragorn, son of Arathorn,
of the House of the Edain,
king of Gondor and Arnor,
lord of the lands from the sunrise to the sunset,
drew near to the fortress of Barad-dûr in the month of Ayyar,
as was reckoned in the second year of the land.
May all his allies receive peace.
May Prince Mišil-Eršum behold him face to face,
he whose heart is bound to Mali-Eršum,
the lord of Eqlum,
and Amurdinnī his wife,
and Kakkab-Šamaš, Amurdinnī, Šartum-ša-ḫurāsi, and Awilti-Nūrim, his daughters,
and Atraḫasis, Ḫadûm, Šaḫšurum, and Ina-Bītam-Kânum, his sons.
To Mišil-Eršum and to Amurdinnī: peace, by order of the king, from Dimat-Nuṣrim,
on the third day of the month of Nisan.

Interestingly, ChatGPT still confuses Baranduin with Barad-dûr. I guess the former is too niche. But it also doesn't understand Aban-Edellī (Edhelharn).