Gerard of Grœsbeek

Gerard van Groesbeeck (1517–1580) was a Belgian Roman Catholic bishop and cardinal.

Gerard van Groesbeeck was born in the château of Curingen, Hasselt in 1517. He was related to the barons of Groesbeek, Guelders.

As a young man, he became a canon of Aachen Cathedral. He was also a canon, and later the dean of the cathedral chapter of St. Lambert's Cathedral, Liège. He became the coadjutor bishop of Robert of Berghes, Prince-Bishop of Liège in March 1562. He became the administrator of the Prince-Bishopric on 11 April 1564.

On 5 June 1564 he was elected Prince-Bishop of Liège; his election was preconized by Pope Pius IV on 23 February 1565. He was consecrated as a bishop by Gregoire Silvius, titular bishop of Tagaste, in the Cistercian Abbey of Herckenrode on 20 May 1565. As Prince-Bishop, he was not successful in implementing the decrees of the Council of Trent in the Prince-Bishopric. He succeeded in preventing Protestantism from spreading into the Prince-Bishopric. In 1567, he crushed revolts in Hasselt, Maaseik, and Maastricht. In 1576, he became Prince-Abbot of Stavelot. He and the Estates of Liège declared the Prince-Bishopric a neutral state in 1577.