By all means! The northeastern mountainous border of Amn has several vacant duchies, thanks to monsters and brigands and the last-thus-far dukes being less than nice people (so, no willing brides). The hill-farm folk would welcome a duke who'd defend them, so…
— Ed Greenwood (@TheEdVerse) May 19, 2018
…immediately west of the Barony of Hawkhill (home of the increasingly infamous Baron's Blades adventuring band) is the "open" dukedom of Farlions ("Far-lions"), known for sheep and timber and copper mines. Immediately east of Hawkhill is the ranching duchy of Dusklake. …
— Ed Greenwood (@TheEdVerse) May 19, 2018
… It's best known for livestock (including horses; several successful warhorse breeders and trainers).
And a little way to the south is the river-vale duchy of Scarnshields (good fishing, mills galore, farming).
Take thy pick, Duke Fabio!— Ed Greenwood (@TheEdVerse) May 19, 2018
And congratulations! May wedded bliss be rich and deep until the end of thy days!
— Ed Greenwood (@TheEdVerse) May 19, 2018
Banners bright, Duke of Scarnshield! Thy shield is deep river blue, the charge on it an X of a crossed silversides (silver-scaled trout), nose upper left to tail lower right, crossed atop a golden wheat sheaf. Thy prosperous duchy is much beset by brigands; thy people need thee! Thank you very much Lord of the Greenwood! I pick Scarnshield, seems to remember of my home, in the Vale of river Po!
— Ed Greenwood (@TheEdVerse) May 19, 2018
Don't be scared. She knows what sort of man you are. She KNOWS she hath a rightful Duke, who'll be a good one. ;}
Stand tall. Family first. Dukedom second. Be a light in the world.— Ed Greenwood (@TheEdVerse) May 19, 2018
In the game Pillars of Eternity kickstarter backers got thier name on a memoriam, and an npc in the world that if promted would reveal a player generated backstory. I bet Wotc could do a successful charity event auctioning off various parts of Faerun and having PC’s be the NPC Lords and Ladies, villains etc.