Question: Who is Georg Ernst Of Limburg Stirum's paternal grandfather?

Knowledge 1: Georg Ernst of Limburg Stirum
Georg Ernst of Limburg Stirum, count of Limburg Stirum, count of Bronckhorst, Lord of Wisch, Lichtenvoorde and Wildenborch, son of Jobst of Limburg.Georg Ernst was Captain (in 1625), then Major (in 1641) of the Army of the Republic of the United Netherlands.He married twice.His first wife was countess Magdalene, the daughter of Arnold III of Bentheim, Limburg and Bronckhorst.They had one daughter: Marie Elisabeth (d. 1707), who married Henry II, Count of Nassau-Siegen (d. 1665).Henry and Marie Elisabeth had four children: Ernestine, Frederick, Sophie and William Maurice.After Magdalena's death, Georg Ernst married in Terborg, on 13 January 1636, to countess Sophie Margarete (1610-1665), a daughter of Count John VII of Nassau-Siegen.She was a titular countess of Nassau, Katzenelnbogen, Vianden and Diez and Lady of Beilstein.This marriage was childless.Georg Ernst died in 1666. [SEP] Knowledge 2: Jobst of Limburg
Jobst of Limburg (19 April 1560, Borculo, Gelderland - 7 August 1621) was count of Limburg and Bronckhorst, Lord of Styrum, Wisch and Borculo (1616), and the son of Hermann Georg of Limburg, count of Limburg and Bronckhorst.He married in 1591 Countess Maria of Schauenburg and Holstein-Pinneberg and they had issue:
Knowledge 1: Georg Ernst of Limburg Stirum
Georg Ernst of Limburg Stirum, count of Limburg Stirum, count of Bronckhorst, Lord of Wisch, Lichtenvoorde and Wildenborch, son of Jobst of Limburg.Georg Ernst was Captain (in 1625), then Major (in 1641) of the Army of the Republic of the United Netherlands.He married twice.His first wife was countess Magdalene, the daughter of Arnold III of Bentheim, Limburg and Bronckhorst.They had one daughter: Marie Elisabeth (d. 1707), who married Henry II, Count of Nassau-Siegen (d. 1665).Henry and Marie Elisabeth had four children: Ernestine, Frederick, Sophie and William Maurice.After Magdalena's death, Georg Ernst married in Terborg, on 13 January 1636, to countess Sophie Margarete (1610-1665), a daughter of Count John VII of Nassau-Siegen.She was a titular countess of Nassau, Katzenelnbogen, Vianden and Diez and Lady of Beilstein.This marriage was childless.Georg Ernst died in 1666. [SEP] Knowledge 2: Hermann Otto II of Limburg Stirum
Field Marshal Hermann Otto II of Limburg Stirum( 1 April 1646 – Donauwörth, 8 July 1704), count of Limburg Stirum and Bronckhorst, sovereign lord zu Gemen, was the son of Adolf Ernst of Limburg Stirum and an imperial Field Marshal.He inherited the immediate lordship of Gemen in 1675, being 18 years after the death of his father during which the regency on Gemen was exercised by his mother Isabella countess von Vehlen und Meggen zu Raesfeld.The reason for the regency is not known.On 15 September 1700, a decision by the Courts confirmed its succession right over Gemen.
Knowledge 1: Georg Ernst of Limburg Stirum
Georg Ernst of Limburg Stirum, count of Limburg Stirum, count of Bronckhorst, Lord of Wisch, Lichtenvoorde and Wildenborch, son of Jobst of Limburg.Georg Ernst was Captain (in 1625), then Major (in 1641) of the Army of the Republic of the United Netherlands.He married twice.His first wife was countess Magdalene, the daughter of Arnold III of Bentheim, Limburg and Bronckhorst.They had one daughter: Marie Elisabeth (d. 1707), who married Henry II, Count of Nassau-Siegen (d. 1665).Henry and Marie Elisabeth had four children: Ernestine, Frederick, Sophie and William Maurice.After Magdalena's death, Georg Ernst married in Terborg, on 13 January 1636, to countess Sophie Margarete (1610-1665), a daughter of Count John VII of Nassau-Siegen.She was a titular countess of Nassau, Katzenelnbogen, Vianden and Diez and Lady of Beilstein.This marriage was childless.Georg Ernst died in 1666. [SEP] Knowledge 2: Ferdinand III of Limburg Stirum
Ferdinand III of Limburg Stirum was the son of Ferdinand I of Limburg Stirum and Katharina Karoline von Eptingen.Born in 1753, he died at the age of 15 in 1768.

Answer: Hermann Georg of Limburg