Duchy of Masovia

The Duchy of Masovia was a district principality and a fiefdom of the Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, and during its existence, its capital was located in Płock, Czersk and Warsaw.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

• Duchy of Masovia and Duchy of Silesia began in the same year
• Duchy of Masovia began 1 year before Kingdom of Portugal
• Duchy of Masovia began 2 years after Novgorod Republic
• Duchy of Masovia began 2 years after Banate of Bosnia
• Duchy of Masovia began 8 years after Kingdom of Sicily

Timeline

1. Kingdom of Sicily1130–1816
2. Banate of Bosnia1136 – October 26, 1377
3. Novgorod Republic1136–1478
4. Duchy of Masovia (this page)1138–1526
5. Duchy of Silesia1138–1742
6. Kingdom of PortugalJuly 25, 1139 – October 5, 1910

Related

• World War IISeptember 1, 1939 – September 2, 1945
• Soviet UnionDecember 30, 1922 – December 26, 1991
• World War IJuly 28, 1914 – November 11, 1918
• Ottoman EmpireJuly 29, 1299 – November 17, 1922
• Cold War1945 – December 25, 1991
• Middle AgesAD 476 – 1500s
• French RevolutionMay 5, 1789
• Byzantine EmpireJanuary 17, AD 395 – May 29, 1453