County of East Frisia

County of East Frisia
*Grafschaft Ostfriesland* (German)
*Graafschap Oost-Friesland* (Dutch)
*Gróófskup Oostfräisland* (East Frisian Low Saxon)
*Groafskup Aastfräislound* (Saterland Frisian)
County of East Frisia Grafschaft Ostfriesland (German); Graafschap Oost-Friesland (Dutch); Gróófskup Oostfräisland (East Frisian Low Saxon); Groafskup Aastfräislound (Saterland Frisian)
1464–1744
	Royal Coat of Arms; (1625–1807) Estatist Coat of Arms; (1678-1807)
	East Frisia around 1600, by Ubbo Emmius
Status	County; (state of the Holy Roman Empire)
Capital	Emden (1464–1539); Aurich (1539–1744);
Common languages	East Frisian (until the 17th century); East Frisian Low Saxon (from the 16th century); Dutch; German;
Religion	Major:; Catholicism (until 1528), Lutheranism (in the east), Calvinism (in the west); Minor:; Catholicism (from 1528), Anabaptism, Judaism
Demonym(s)	East Frisians
Government	Feudal monarchy
Counts and Princes of East Frisia
• 1464–1466	Ulrich I (first count)
• 1480-1491	Enno I
• 1491-1528	Edzard I
• 1528-1540	Enno II
• 1561-1599	Edzard II
• 1599-1625	Enno III
• 1625-1628	Rudolf Christian
• 1628-1648	Ulrich II
• 1651-1660	Enno Louis
• 1660-1665	George Christian
• 1690-1708	Christian Everhard
• 1708-1734	George Albert
• 1734–1744	Charles Edzard (last prince)
Chancellor
• 1503-1530	Wilhelm Ubben
• 1534-1538	Wilhelm Ubben
• 1539-1541	Henricus Ubbius
• 1541-1552	Hermann Lenth
• 1552-1571	Friedrich ter Westen
• 1599-1611	Thomas Franzius
• 1611–1637	Dothias Wiarda
• 1637-1653	Arnold von Bobart
• 1659-1664	Hermann Höpfner
• 1686-1692	Johann Heinrich Stamler
• 1720–1734	Enno Rudolph Brenneysen
Legislature	East Frisian Landschaft
Historical era	Middle Ages; Early modern era;
• Elevation of Ulrich I to Imperial Count	1 October 1464
• Appointment of Albert III as hereditary governor of East Frisia by Maximilian	27 March 1499
• Saxon feud	1514-1517
• Drafting of the East Frisian Landrecht	1518
• Colloquy of Oldersum	1526
• Partition of East Frisia between Edzard II and Johann II	1578-1591
• Emden Revolution	1595-1603
• Treaty of Berum	28 January 1600
• Accord of Osterhusen	21 May 1611
• Appeal War	1726-1727
• Emden Convention	14 March 1744
• Incorporation in the Kingdom of Prussia	25 May 1744
Area
1800	1,800 km2 (690 sq mi)
Population
• 1744	85,000
• 1765	94,000
• 1786	103,000
• 1804	120,000
Preceded by	Succeeded by
	East Frisian chieftains
	Frisian freedom
Kingdom of Prussia
Today part of	Germany; Netherlands;

The County of East Frisia (/ˈfriːʒə/; Frisian: Greefskip Eastfryslân; Dutch: Graafschap Oost-Friesland) was a county (though ruled by a prince after 1662) in the region of East Frisia in the northwest of the present-day German state of Lower Saxony.