DF is woking on a consistent plan for the treatment of NPC Areas, stay tuned! We've listed the major areas by Hold, Weyr and Crafthall. This is the place to put information about what is going on there, who is the current NPC leader, what major events have happened. Eg. Smith Craft has just murdered their craft master, so those from Telgar would be more aware or So and So has just become Lord of X. Detailed information on the Lord Holder structure can be found under Holds. This information came from the help files on game - so is likely not up to date, but shouldn't be mucked with without input from the Wizards.
edit
[+] : deceased [*] : NPC [?] : Unknown, disappeared, etc..
Benden Hold:
Kellin (unconfirmed Lord) [?]
Selki (unconfirmed Lady) [?]
Lord Theodoric [*]
Bitra Hold:
Lord Gnarduk and Lady Lehrenne [?]
heir, (1st daughter), Lehle [+]
Crom Hold:
Lord Jessop [*]
Linette (daughter) [*]
Fort Hold:
ret. Lord Keagon [+] and ret. Lady Jisella [?]
niece, Alexa [?]
nephew, healer master Bryant [+]
niece, harper master Megan [?]
ret. Lord Locar [+]
ret. Lord Tritor [*]
Lord Incarnadine [+] and Lady Yasmine [?]
Carmin, Innis, & NPCs (sons)
Deanna and Trinien (grandchildren)
Tamisan (cousin to Yasmine)
Lord Naslon [+] and Lady Terise
High Reaches Hold:
ret. Lord Brailer [+]
Lord Brakton
Jenni (heiress from rival bloodline)
Igen Hold:
ret. Lord Gandalf [+]
Lord Galhov (nephew to Gandalf) and Lady Slaine
Elamain (heir, daughter of Galhov and Slaine) [*]
Ista Hold:
Lord Sterling
ret. Lord Mykle [?]
ret. Lord Romo [*]
ret. Lord Zebadiah
ret. Lady Kamala and consort, Steward Zelanzy
ret. Acting Lady Zemala
Kalany (twin to Zemala)
Keroon Hold:
Lord Mikat [*]
Telenia (daughter)
Lemos Hold:
ret. Lady Holder Melissa [*]
Palina (daughter) [*]
S'ran (son) [*]
ret. Lady Holder Rhiannon (daughter to Melissa) [+]
Nabol Hold:
Lord Breth [*] and Lady Sera [*]
Ceven (son, disinherited) [*]
Neth (son, heir) [*]
Elisena (daughter) [*]
Kyrie (daughter of Breth only)
Nerat Hold:
ret. Lord Stefan [+]
heir, (1st son of Stefan), Kurgan [+]
T'rand (brother to Stefan) [+]
Lady Holder Rilla [*]
Dafydd (father to Rilla) [*]
Jagelio (cousin to Rilla) [*]
Ruatha Hold:
Lord Thern [+] and Lady Rebecca (second wife) [+]
Morgana and Vastefer [+]
Vanessa [*] (marries Morbet)
Lord Mortigan [+] and Lady Lizbet [+]
Lord Morbet [*] and Lady Vanessa [*]
Southern Hold:
Lord Temperon
Talion (son and heir)
Southern Boll Hold:
Lady Auryn
Marryn and Amarik (sons)
ret. Lady Damaris
ret. Lord Tethys
Jocelyn (younger sister) [*]
Cinnamon (great grand-daughter)
Telgar Hold:
ret. Lord Shirgall [+] and ret. Lady Ezmeralda [+]
Nyegall and Nyezmera (twins, son and daughter) [*]
ret. Lady Holder Jina and Lord Parik [?]
Tillek Hold:
Lady Constanze [*] and Lord Jerion
Jazrelia