Duchy of Sieradz ended in 1339.
Sieradz was created in 1247.
The population of Sieradz is 44,045.
Sieradz County's population is 121,013.
The population of Gmina Sieradz is 9,788.
The area of Sieradz is 51.22 square kilometers.
The area of Sieradz County is 1,491.04 square kilometers.
The area of Gmina Sieradz is 181.63 square kilometers.
Duchy of Urbino ended in 1625.
Duchy of Carniola ended in 1918.
Duchy of Friuli ended in 828.
Duchy of Florence ended in 1569.
Duchy of Württemberg ended in 1806.