Komárom-Esztergom County, Hungary Genealogy

History
In the aftermath of World War I, the part of Esztergom county north of the Danube became part of newly formed Czechoslovakia. The southern part remained in Hungary and merged with the southern part of Komárom county to form Komárom-Esztergom county.

The Czechoslovak part became again part of Hungary in November 1938. The old Esztergom county was recreated. After World War II, the name of the Hungarian part became Komárom county. This county was renamed to Komárom-Esztergom county in 1990. The part of the county north of the river Danube is now in Slovakia and is part of the Nitra region.