It'll be a Northern hold, something resembling Skye in Scotland. I like that we're able to have some room to give our own creative input to the worldbuilding for this rp. I have my idea for the hold below, lemme know if it fits in with your own lore/geography. etc.

Hold name: Tarnton
Geography: A largely sloping and rugged terrain, the centre of Tarnton is located from a collection of mountains and then spreads outwards down South. Tarnton is bountiful in metal mines, the majority of them spread out towards South throughout the hold, though two tin mines and one small silver mine exist in close distance to the city. A wide and powerful river, the Osk, runs from the foot of the mountains where a great natural rocky overpass fords over the mouth of the river and exists as the only bridge across this far North. As other manmade attempts to bridge the river have fallen to the waters ferocity, the river runs undisturbed until it reaches further South and branches off towards either the East sea or to a quieter trickle where bridges are able to be built. Tarntons one great road runs along the River Osk all the way down South towards the Capitol, making it the holds one trading route. The majority of townships within the hold are gathered fairly tightly around the city Fordton, but then spread out down South along the River Osk, with a fair amount of distance between each township, the furthest out being but a mere five miles from the hold border and a whole seventy miles from Fordton.

Lord Commander: Lady Overton, forename Millescenta, a shrewd and judicious leader with a keen nose for business. Does not possess as ardent a loyalty for the Monarchy as her Father and Grandfather did before her, but is agreeable enough for now considering that the Capitol is the primary consumer of Tarnton's exports.
City: Fordton, stood near the base of the mountains and named for the natural overpass that fords the River Osk. Home of the holdings keep, Stowerling Keep.
Townships: Eight

History: The youngest of the Holds, less than a hundred years ago Tarnton was established upon the discovery of several copious veins of tin and copper in a smattering of hills and mountains in the North, causing several mines to sprout up, and around them, a bundle of towns. The towns soon concentrated around the collection of mountains to the far North of the region and joined together to create something of a city. The monarchy, recognising the sheer wealth of material within the region were quick to establish a hold as well as a trade settlement that prioritised the selling and transport of metals to the capitol first and foremost. The running of Tarnton was granted to Lord Galter of House Overton, a merchant family with old noble blood and of strong loyalty to the monarchy. The hold has passed through two leaders and now rests in the hands of Lady Millescenta who has differentiated herself from her predecessors by being a Tarnton-born ruler who, having never known the Capitol or the Royal court, lacks the steadfast loyalty to the Royal Family, and is instead keen to expand the regions prospects by extending the selling of larger amounts of materials to other holds within the realm and possibly overseas.

Vassals: Four, the vassals act as both a small council for Lady Overton as well as overseers of the region, with the responsibility of travelling to the far reaches of the hold to govern the townships as well as patrol the land. At present, Tarntons vassals consist of: 
Grand Steward Sir Jesper, Chief Administrator of the region and, alongside Lady Overton, manager of the finances of Tarnton.
Sheriff Emlyn Celtigar, acting mayor for the outer townships of Tarnton, collects taxes and establishes order along the river road.
Chaplain Thenn, Minister of the new Faith, runs all religious practise within Tarnton and represents the King.
Sir Dorrin Kell, Captain of the Guard, polices the subjects within the region, patrols the outer reaches, leads a small retinue of knights (my character is one of them).