1. House Manderly is rich, folks. It has a quite large city under its control, and Lord Wyman influences much of the North, from Moat Cailin to Widow's Watch. Ramsgate is directly sworn to it. Add to that the silver mines, and you have a very powerful House. First place.
2. Roose commands some 4000 men, and House Bolton has to be powerful for them to have opposed the Starks for millennia, so second place.
3. House Dustin refused to send many soldiers for Robb during the Wot5K, so the fact that we don't see any soldiers from Barrowton does not suggest House Dustin is weak. And Barrowton is the largest town in the North, so House Dustin is a major economic and military power.
1. Every single Ironborn says Harlaw is the richest island. Well, guess who rules Harlaw: House Harlaw.
2. Great Wyk is the largest island and therefore the second richest. Who rules Great Wyk? House Goodbrother, one of the greatest Houses of the Iron Islands, does.
3. Orkmont is the third largest, and the fact that an Orkmont House (House Hoare) came to rule the Iron Islands indicates that Orkmont is a pretty rich island, and that its rulers, House Orkwood, is a pretty powerful House.
1.House Frey also has many Houses, such as House Haigh, directly sworn to it. It controls a major trade route between the North and the South, and it is therefore quite rich.
2. House Mallister has a fleet, aaa good castle, and a large army. It is constantly called one of the most prominent Houses sworn to Riverrun, so second place.
3. In AGOT, House Blackwood was more powerful than House Bracken (a result of the Blackfyre Rebellions, IMO) so third place. Houses Blackwood and Bracken seem to be the more powerful Houses in the Riverlands. In AGOT House Whent was declining but in 281 House Whent would have been stronger than House Blackwood or even House Mallister.
1. House Royce is the greatest of the Arryn bannermen, and it can field thousands of men. It has a strong influence on Gulltown, a major city.
2. House Grafton is the ruler of the fourth-largest city in Westeros, and so it should be pretty rich.
3. House Waynwood is another prominent Vale House. Lady Waynwood is the second strongest of the LDs, and since most of the powerful Vale lords are with Yohn Royce as a LD House Waynwood is probably the third most powerful Vale House.
(I'm omitting the Reynes because they are extinct. If they were not they would be first place.)
1. House Lefford controls the Golden Tooth, which is presumably full of gold, and the River Road, an important trade route.
2. House Crakehall must be able to field many men if they were able to defeat invasions from the Reach multiple times. They also control a major trade route, the Ocean Road, that connects two very wealthy regions: the Westerlands and the Reach.
3. House Reyne was once the top dog in the northern Westerlands, but now House Marbrand is. House Marbrand presumably has gold mines in its lands (Pendric Hills) and is probably quite rich.
1. House Hightower is a de facto Great House. It is ridiculously rich from the Oldtown trade, most Houses south of Brightwater Keep is sworn to it, and it can field thrice more men than any other Tyrell bannermen. Since House Tyrell can field the most soldiers it is obvious House Hightower is the strongest non-Great House in Westeros. Also, it has a major ally-the Citadel. House Hightower is probably stronger than House Martell, if not militarily, then economically.
2.House Redwyne has a fleet as large as the Iron Fleet, and the Arbor seems quite fertile.
3.House Rowan, probably kings once, rule from Old Oak to the Mander. House Crane is directly sworn to it, and possibly House Oakheart as well. Not only is the northern Reach very fertile, one can reach most of the South from it.
1. Duskendale is a major town and a port as well. So House Rykker must be a quite powerful House.
2. House Velaryon would have once been in the top ten, but it suffered greatly in the DotD and never recovered. High Tide was burned, Spicetown was sacked and never rebuilt, and much of its fleet was destroyed. But still, House Velaryon is a major power in the Crownlands with a large fleet of perhaps 30 ships or so (although once the Velaryon fleet matched the Iron Fleet itself) and a decent army.
3. House Rosby has extensive and fertile lands and great wealth. It is also a major player in the Game of Thrones thanks to its location.
1. The Dornish Marches are quite big, and Nightsong a formidable castle. House Dondarrion and all of the Marches are sworn to House Caron. A hundred years ago, House Caron could directly field 4000 men-as large as the entire Frey army, including Frey bannermen- and one of their bannermen, House Dondarrion, could field 1000. So apparently, House Caron can summon something like 8000 men. Quite surprising for a not prominent House.
2. House Selmy is not actually directly sworn to House Baratheon. House Selmy is sworn to House Caron of Nightsong. But House Selmy rules the most fertile region in the Stormlands (heck, the castle is HARVEST Hall) and all the Marcher lords seem to command thousands of men, so House Selmy is second.
3. Since House Errol is the only Kingswood House mentioned as principal Bararatheon bannermen, it is likely that House Errol is the strongest House of the northern Stormlands. But the only things in the northern Stormlands are trees and trees and trees, so doesn't mean much.
1. House Yronwood was once the Royal House of half of Dorne and is still the Warden of the Boneway, with House Wyl sworn to it. The Boneway is the major gate to Dorne (the Prince's Pass has no road) so House Yronwood commands a trade route as well.
2. House Fowler commands the Prince's Pass, with House Manwoody sworn to it. As House Fowler is a rival to House Yronwood, they probably have similar strength.
3. House Allyrion's seat Godsgrace is bordered by three rivers: the Vaith, the Scourge, and the Greenblood. Therefore the Allyrion lands are probably highly fertile and House Allyrion is probably one of the richer Dornish Houses.
Edited by Game Of Thrones, 31 July 2014 - 03:16 PM.