The World in 1100 and How it Got There
Northern Europe:
England: King Harold III, nephew to Harold II, had ruled England for nearly twenty years, and under his guidance, she has grown from a backwater power to an empire that spans much of Europe. In the late 1080s, Harold III assassinated his father, king Gyrth I, to gain the throne of England. Mere days after he is crowned, Duke Robert de Normandie attempts to seize the English throne from him, calling on his allies, France and Flanders. The Norman War was a defining moment in English history, as it expanded England's continental holdings from just Brittany to Normandy and Flanders, giving it control to important trade routes.
From there, Harold III fought several small wars in the Lowlands for control of yet more continental coastline and of the Friesian duchies, opening more trade up to northern Europe.
Tragedy struck Harold III when his son, Aethelstan, king of Norway-Denmark, was assassinated by rebels. Harold III inherited Norway-Denmark and set about crushing the rebellious vassals that had killed his son.
After taming Norway-Denmark, Harold III turned his focus to gain back the islands that had been lost during King Olaf's reign. Following the reincorporation of Iceland and the surrounding islands into England, peace reigned until 1100, when Harold's historians "found" a claim on the throne of Scotland...
Scotland: Scotland experienced nearly a decade of peasant uprisings against it's throne, as the lower classes tried to overthrow the monarchy in favor of an Italian style republic. These revolts finally came to an end in the late 1090s, but at the cost of half of Scotland's lower class. Now, as the Scottish economy tries to restart itself, it finds a hungry England ready to pounce.
Southern Europe
The Holy Roman Empire: After nearly being wiped off the map in the early 1070s, the HRE is making a comeback. After a series of small wars against some of it's break-away duchies, the HRE is fighting a war with Saxony, in the hopes of regaining some of it's lost glory. Harold III has warned the Holy Roman Emperor against war with Saxony, as Harold III has his own designs for it, but the Emperor has refused to listen.
France: After the sack of Paris in the late 1080s and the loss of much of it's coast line, France has been in a state of decline. Perhaps inspired by their Scottish counterparts, the French peasantry have started demanding an Italian style republic. Unlike in Scotland, the nobles also favor a form of republic: the noble republic. The only thing keeping both parties in check is King Phillipe's iron grip on France.
Bavaria: When the Holy Roman Empire collapsed, Bavaria made the most of it, quickly absorbing its neighbors. Now Bavaria under the von Nordheims is the only thing standing in the way of an expansionist Hungary.
Iberia:
Leon: After Gyrth's Crusades, Leon merged with Castille, and conquered the last remaining Berber emirates, ridding Iberia of their influence once and for all. Now, instead of looking gratefully at the Anglo-Saxon settlements to her south for holding back the Muslim hordes, she looks at the with envy for their control of Mediterranean trade. Leon was the first to sign on to the League of Paris and now waits for her chance to finally destroy the Anglo-Saxons to her south.
Aragon: Greatly influenced by the Italian way of thinking, Aragon had adopted a noble republic not long after being formed in the late 1090s. Europe watches with curiosity, and a little fear, at this new form of government.
Beja: One of the remains of Gyrth's Crusades, Beja and Andalucia have created a strong alliance dedicated to continued Anglo-Saxon domination of Mediterranean trade.
Andalucia: Ruled by the nephew of king Harold III, Andalucia saw a brief period of civil war that nearly removed the House of Godwinson from the throne. Now, with the Grand Duchy of Beja, they make sure that Anglo-Saxon dominance in the Mediterranean goes unchallenged.
Italy
Pisa: Currently the controllers of the central Mediterranean, Pisa acts as the bridge between the Muslim and Catholic worlds, importing and exporting goods for both sides. As one of the few republic in the world, Pisa acts as the model for which all republics should aspire to.
Sicily: The Normans in Sicily have fared better than their brothers in France. When the Holy Roman Empire's Italian vassals rebelled, Sicily was quick to add them to their nation. Their current king dreams of an united Italian state, under Norman control, of course.
Balkans:
The Eastern Roman Empire: The undisputed ruler of the Balkans and Anatolia, the Eastern Roman Empire is the richest nation in all of Europe. With the collapse of the Seljuk Turks, the ERE has expanded into the Middle East slowly, playing each emirate against each other, always to their advantage. The only snag came when Alexios Komnenos was crowned emperor. A known sodomite and heretic, Alexios was one of the worst emperors the ERE had ever seen, driving the nation into civil war. Eventually, Alexios was overthrown, and peace was returned to the Empire.
Eastern Europe:
Hungary: In the early 1070s, Hungary won a smashing victory against the Pechenegs, annexing most of their territory. Hoping to gain some more land, they turned to the remains of the Holy Roman Empire, only to be confronted by Bavaria. Now they wait for their chance to dismantle Bavaria and then conquer the rest of Germany.
Cumans: The Cumans received massive amounts of immigrants when Pechenegs was destroyed by Hungary and Kiev. Using these new warriors, they went on to dominate the Steppe, mastering all the other pagan tribes and the Russian principalities with their allies the Mordvins, stopped only by the combined forces of Bjarma, Kiev, Polotsk, and Georgia. They are currently fighting a civil war.
Georgia: Early in 1070, they annexed Alans, greatly increasing their size. Capitalizing on the Seljuk's collapse, Georgia expanded into the Middle East, before turning their attention to the Cumans, where they grabbed yet more land. Now they wait for the next war against the Cumans, ready to expand yet again.
The Khazars: These guys are the only Jewish nation in Crusader Kings. The fact they're still around is amazing.
The Middle East:
The Seljuk Turks: A bloody civil war in 1066 ripped this once mighty nation apart, leaving only a rump state. They can only watch as the Eastern Roman Empire slowly expands into their old lands.
The Archbishphoric of Mesopotamia: Set up by the Eastern Roman Empire as a buffer state between them and the rest of the Middle East, Mesopotamia is currently on it's way to bringing the Orthodox faith to the heathens in the Middle East.
North Africa:
Nothing much of any interest has happened here, though it remains a strong hold for the Muslim faith.