Siegfried IV of Boyneburg
Siegfried IV von Boyneburg , also von Homburg (* around 1095; † April 27, 1144 ) from the house of Northeim was Count of Boyneburg (1107–1144) and Vogt of the monasteries Corvey , Bursfelde and Helmarshausen . He was the only son of Count Siegfried III. von Boyneburg from the house of Northeim and the Adelheid Countess von Holstein.
Around 1129 he founded the Amelungsborn monastery , the oldest still existing Cistercian monastery in Germany. He built the Homburg near Oldendorp (today's Stadtoldendorf ), near the Amelungsborn monastery opposite the castle of the Counts of Everstein .
On November 8, 1141 Siegfried granted the Benedictine monastery Northeim various rights and also confirmed its ownership (such as Tiftlingerode near Duderstadt ) with the intention of protecting the Northeim monastery from claims by the Archbishop of Mainz and from attacks by the Count von Dassel . With Siegfried IV von Boyneburg, the Northeimer male line died out in 1144.
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| personal data | |
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| SURNAME | Siegfried IV of Boyneburg |
| BRIEF DESCRIPTION | Count of Boyneburg (1107–1144) and Vogt of the Corvey, Bursfelde and Helmarshausen monasteries |
| DATE OF BIRTH | around 1095 |
| DATE OF DEATH | April 27, 1144 |