A comital lordship on the Thaya facing Moravia, held since 1187-88 by the Plain counts, who keep their old house lands in the Salzburg country (written by sal).
Hardegg castle stands on a rock over the Thaya, the Moravian frontier river. How the Plain came by Hardegg is not stated in what we read.
Who he is
- Name
- Liutold (III) of Plain, count of Hardegg, with his brother Conrad (I)
- Title
- Counts of Hardegg (of the house of Plain)
- Since
- Their father Liutpold of Plain became count of Hardegg in 1187-88; Liutold is styled count of Hardegg from 1198, Conrad from 1200
- Born
- Liutold about 1175; Conrad 1180
- Family
- Counts of Plain, from Plain above Salzburg, advocates of Salzburg churches. Liutold (III) dies at Treviso on 27 August 1219; Conrad (I) on 4 April 1250. A sister Sophia is recorded 1197-1210. Their brother Otto died 23 August 1197.
- Confidence
- low
de.wikipedia Grafen von Plain, which warns that the sources are often faulty and many dates uncertain.
Overlord
Duke Leopold VI of Austria for the county; the house's Salzburg lands lie under the archbishop (sal)
What it holds
- Hardegg castle and county on the Thaya
- Country round Hardegg on the plateau west of Retz (extent not pinned)
How it was acquired
Liutpold of Plain became count of Hardegg in 1187-88 (how is not pinned).
Allies and rivals
Neighbours of the Moravian castle of Znojmo across the Thaya.
How things stand that morning
Held by the Plain brothers on 1 January 1200 (which of them held which share is not pinned).
Wealth
Rural rents; the Thaya crossing.
Military
Hardegg castle on the Moravian frontier.
Places of note
- Hardegg castle: Comital castle over the Thaya
Where the sources disagree
- The Plain genealogy is muddled: the de.wikipedia table gives Liutold III as count of Hardegg from 1198 and Conrad I from 1200. We give both as joint holders.
Evidence: Genealogy uncertain; the county's extent in 1200 is not pinned (Retz came to the family only in 1254).
On the map: Extent of the county in 1200 not pinned.
Primary sources for Austria
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- Annals of Jarloch (Gerlach), abbot of Milevsko, Jarloch of Milevsko (about 1200 to 1220). The last Bohemian narrative before 1200, continuing Vincentius of Prague. Read online
- Annals of Schäftlarn and the Bavarian annals (12th and 13th centuries). Brief Bavarian annals. Read online
- The Austrian and Salzburg annals (kept in the 12th and 13th centuries, with continuations to the late 13th century). A family of monastic annals from Austria, Styria and Salzburg, printed together. Read online
- Regesta Imperii V: calendar of the acts of Philip, Otto IV and Frederick II, 1198 to 1272 (calendar of documents of 1198 to 1272, published 1881 to 1901). A dated calendar of every known act of King Philip and King Otto IV, with the acts of popes and princes that bear on the Empire. Read online
- The Registers of Pope Innocent III for 1199 to 1201, Innocent III and the papal chancery (22 February 1199 to 21 February 1201). The pope's outgoing letters for the year, in his chancery's own copy, touching nearly every realm in the atlas. Read online
- Bavarian monuments: the charters of the Bavarian monasteries and bishoprics (charters from the 8th century onward, published 1763 to 1916). The great charter series of Bavaria, arranged by monastery and bishopric. Read online
- The political songs of Walther von der Vogelweide, 1198 to 1201, Walther von der Vogelweide (about 1198 to 1201). Three stanzas of the Reichston, composed between 1198 and 1201 after Walther left Vienna, lament the disorder of the double election and call on Philip to take the crown. Read online
- Constitutions and public acts of the emperors and kings, volume 2, 1198 to 1272 (documents of 1198 to 1272, edited 1896). The public documents of the throne war in full text: the election notices of 1198, the princes' declaration of Speyer of 28 May 1199 to Innocent III, the pope's replies, Philip's and Otto's letters and promises, and the imperial acts of 1200 and 1201 including Otto's promises at Neuss in June 1201. Read online
Sources and studies
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.