The Lithuanians in 1362 and 1363 conquer the remaining lands of southern Kievan Rus', including the territories of Kiev, ...

...Pereiaslav, and ...

…Podolia.

The Lithuanians go on to conquer the Kievan Rus' territory of Novhorod-Siverskyi in the middle Desna River valley in 1363.

Valdemar’s forces had employed cannon to repulse the Hanseatic fleets at the battle of Helsingborg in 1362.

Under a treaty concluded in 1363, Valdemar forces the Hanseatic League to accept terms that greatly curtail its trade privileges.

The bridge over the River Inn, which gives Innsbruck its name, has made the eastern Alpine city an important point on the trade routes to Germany from Italy and Switzerland by the twelfth century.

Originally belonging to the counts of Andech, Innsbruck passes to the Habsburgs in 1363 when the Tyrol becomes a Habsburg possession.

Bertrand du Guesclin and the Renewed Breton Conflict (1363–1364)

As the War of the Breton Succession resumed in 1363, Bertrand du Guesclin, a formidable Breton knight known for his guerrilla warfare tactics, once again played a key role in supporting the French-backed claimant, Charles of Blois, against Jean de Montfort and his English allies. However, despite some early successes, Charles' campaign faltered when du Guesclin was drawn away to other fronts, leading to a stalemate in Brittany.

Bertrand du Guesclin: A Ruthless Breton Commander

• Born into the petty nobility of Brittany (the seigneurs of Broons), du Guesclin gained a reputation as a rough and brutal warrior.
• Serving Charles of Blois, he became a key figure in the war, fighting against Jean de Montfort’s English-backed forces.
• He was knighted in 1354 after successfully countering an English raid led by Hugh Calveley on the Castle of Montmuran, while serving Arnoul d'Audrehem.

Du Guesclin’s Earlier Victories: The Siege of Rennes (1356–1357)

• He successfully defended Rennes against an English siege, commanded by Henry of Grosmont, 1st Duke of Lancaster.
• Using guerrilla tactics, he harassed and exhausted the besieging English forces.
• During the siege, he fought and killed English knight William Bamborough in single combat.

The 1363 Campaign: Initial Success, Then Stalemate

• With war resuming in 1363, Charles of Blois launched a new offensive, supported by du Guesclin.
• Du Guesclin, also known as the Black Dog of Brocéliande, helped secure key victories, advancing the Bloisist cause.
• However, when du Guesclin left Brittany to take control of strongholds in Navarre and Normandy, Charles of Blois’ momentum stalled.
• His advance halted at the siege of Bécherel, where Jean de Montfort’s forces successfully resisted.

Failed Negotiations and Joan’s Opposition

• As the siege dragged on, the warring parties agreed to meet near Évran to resolve their differences.
• The bishops intervened, proposing a partition of Brittany between Jean de Montfort and Charles of Blois.
• However, another opportunity for peace was rejected, as Joan of Penthièvre (Charles’ wife) refused to negotiate, insisting on continuing the fight to completely eliminate the Montfortist claim.

The Stage is Set for the Final Battle

• The failure of diplomacy meant that the conflict would continue, culminating in the Battle of Auray (1364)—the decisive engagement of the Breton War of Succession.
• With Charles of Blois refusing to compromise, Brittany remained a divided and war-torn region, further entrenching English and French influence in the duchy.

Despite his skills as a military commander, du Guesclin’s absence from Brittany in 1363 left Charles of Blois vulnerable, and Joan of Penthièvre’s refusal to negotiate peace ensured that the war would continue toward its decisive conclusion at Auray.

The Navarrese Crisis and Edward III’s Strategy (1363)

By 1363, the French Crown was locked in conflict with Navarre, particularly as the Navarrese sought to exploit the captivity of King John II in England and the weakness of the Dauphin (the future Charles V). The Kingdom of Navarre, located near southern Gascony, was ruled by Charles II of Navarre ("Charles the Bad"), a scheming noble with dynastic claims and political ambitions in France.

Navarre’s Power Play Amidst French Instability

• Since 1354, Navarre had been in conflict with the French Crown, resisting Valois control while cultivating alliances with England and other French dissidents.
• With King John II still in English captivity (since Poitiers, 1356) and the Dauphin struggling to consolidate power, Charles II of Navarre sought to expand his influence in northern and western France.
• Seeing an opportunity to weaken France, Edward III of England secretly supported Navarre’s moves, even though no formal treaty existed between them.

Edward III’s Deliberate Stalling of Peace Negotiations

• Edward III, knowing that Navarre’s actions could destabilize France, saw a potential gain for himself:
  • If Navarre successfully challenged Valois authority, Edward might secure control over parts of northern and western France.
  • The continued instability would make it harder for the French to reclaim lands ceded in the Treaty of Brétigny.
• With this in mind, Edward intentionally slowed down peace negotiations, ensuring that the conflict within France remained unresolved.

Impact on the Hundred Years' War

• Navarre’s rebellion and English interference prolonged France’s internal instability, preventing the Dauphin from immediately restoring royal authority.
• The conflict exacerbated divisions within the French nobility, weakening France’s ability to recover from its defeats.
• Edward’s manipulation of the political crisis further delayed a true resolution of hostilities, ensuring that the Hundred Years’ War remained unresolved.

Edward III’s support for Navarre in 1363 was part of a broader strategy to exploit French weakness, ensuring that France remained politically fractured while England strengthened its foothold on the continent.

Members of the Swedish Council of Aristocracy, led by Bo Jonsson Grip, had arrived in the court of Mecklenburg in 1363, after having been banished from the country after a revolt against king Magnus Eriksson.

At the nobles' request, Albert of Mecklenburg launches an invasion of Sweden supported by several German dukes and counts.

Several Hanseatic cities and dukes in Northern Germany express support of the new king.

Stockholm and …

…Kalmar, with large Hanseatic populations, also welcome the intervention.

Albert is proclaimed King of Sweden and crowned on February 18, 1364.

Magnus finds refuge with his younger son in Norway, where he will retain his sovereignty over Iceland until he drowns in 1374 in a shipwreck in Bømlafjorden.