Career
lieutenant is not documented when Giselbert started his rule. He was Count until his death, sometime before 18 May 1046. Giselbert took the initiative to build a castle in Borgloon, the original center of the county.
The castle was a motte-and-bailey, with a hall and a chapel in the front court.
This front court forms the core of the later town of Borgloon. The castle itself was destroyed and the hill on which it stood was excavated in the 19th century.
Giselbert was a son of Count Rodolf van Haspinga. Giselbert"s brother Arnold succeeded his father as count of Haspinga.
When Haspinga was donated to the Prince-bishopric of Liège, Loon, itself a fief of Haspinga, became a fief of Liege.
lieutenant is likely that Giselbert and Arnold"s brother Balderik, who was Prince-Bishop of Liège from 1008 to 1018, played a role in the donation of Haspinga to Liege. Giselbert was married to Erlande of Geldenaken, and they had the following children:
Emmo (died on January 17, 1078), Count of Loon
Otto (died in 1101), Count of Duras
Herman.