Taking advantage of the civil war, the Turks cross by ship from Asia to Thrace, burning fields, driving off livestock and enslaving people. (Nikephoros Gregoras, Roman History XIII.12 (Bonn 684))
The grain ships that came yearly from the Black Sea fail to arrive; the cause is the Genoese colony of Caffa blocking the mouth of the Black Sea. (Nikephoros Gregoras, Roman History XIII.12 (Bonn 684))
Sub-Saharan Africa (1)
Zamnagawa takes the throne (how Tsamia died is unknown) and shuts himself in the palace for seven days; during his seven-year reign there is no war anywhere. (Kano Chronicle Palmer 1908, Kano Chronicle §X Zamnagawa, p.70)
Southern Europe (23)
A great Florentine army marches out to Valdinievole to relieve Lucca (Giovanni Villani, Nuova Cronica part_07 l.367–369 (Lib.XI, GAP.CXXXIX))
The Florentine army leaves Gragnano, crosses the Serchio and camps at San Pietro in Campo; it is blocked by the Pisan palisade (Giovanni Villani, Nuova Cronica part_07 l.470–471 (Lib.XI, GAP.CXL))
Some Florentine cavalry cross the Serchio and try to break through the Pisan palisade, but retreat without much result (Giovanni Villani, Nuova Cronica part_07 l.568–579 (Lib.XI, GAP.CXL))
The Florentine army fails to relieve Lucca on 19 May and retreats across the Serchio (Giovanni Villani, Nuova Cronica part_07 l.588–591 (Lib.XI, GAP.CXL))
Lucca holds out without relief and surrenders to Pisa on terms: Pisa to pay 180,000 florins over six years, with an annual tribute worth 10,000 florins (Giovanni Villani, Nuova Cronica part_07 l.611–618 (Lib.XI, GAP.CXL))
Ancona's commoners rise, attack and drive out nobles and notables, and plunder their property (Giovanni Villani, Nuova Cronica part_07 l.699–709 (Lib.XI, GAP.CXLII))
The Ghibelline Tarlati family opens the Porta Buia at dawn and enters Arezzo in a surprise attack, but the duke's cavalry drives them out (Giovanni Villani, Nuova Cronica part_07 l.2370–2379 (Lib.XII, GAP.V))
King Robert of Naples dies (19 January, 1342 by Florentine reckoning); his granddaughter Joanna succeeds him and marries Andrew (Giovanni Villani, Nuova Cronica part_07 l.2970–2999 (Lib.XII, GAP.X))
A great fire in Pietrasanta destroys most of the town except the citadel; the duke supplies grain and funds (Giovanni Villani, Nuova Cronica part_07 l.3084–3091 (Lib.XII, GAP.XII))
The King of Aragon takes the island of Majorca from his cousin the King of Majorca, with the collusion of Majorcan merchants (Giovanni Villani, Nuova Cronica part_07 l.3207–3211 (Lib.XII, GAP.XV))
A great fire in Mechelen (Malines) in Brabant destroys many houses, including churches and the cloth hall (Giovanni Villani, Nuova Cronica part_07 l.672–692 (Lib.XI, GAP.CXLI))
Eastern Europe & Russia (3)
In 1343 an uprising across Estonia killed the Danes and Germans, besieged Reval (Tallinn) and took the fortress of Ezel. (Karamzin, History of the Russian State 제4권 X장)
Pskovians on a campaign into German land face the Germans on Lake Ostretsino. (Novgorod First Chronicle litopys 기사 1343년)
A great fight at Tana (a trading post on the north shore of the Black Sea) between the Venetians and the Saracens; the inhabitants then rise and kill Venetian, Genoese and Florentine merchants, with over 60 taken prisoner; losses of 350,000 florins for Genoa and 300,000 for Venice (Giovanni Villani, Nuova Cronica XII.27)