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.
August Philip of Limburg Stirum
August Philipp Karl of Limburg Stirum( 1721–1797), count of Limburg Stirum and Bronckhorst, was the son of Otto Leopold Count von Limburg Styrum und Bronckhorst, Lord of Gemen and Raesfeld( 1688 – 1754) and Anna Elisabeth countess of Schönborn( 1686 – 1757).
August Philipp was Prince- Bishop of Speyer and sovereign Lord zu Gemen from 1771 till 1797.
Christian Otto of Limburg
Christian Otto von Limburg Stirum, count of Limburg Bronkhorst and Stirum( 1694 – 1749), was a member of the House of Limburg- Stirum and the third reigning monarch from the branch of Limburg- Styrum- Styrum.
Karl Josef of Limburg Stirum
Karl Josef Maximilian of Limburg Stirum, count of Limburg Styrum, sovereign lord zu Gemen, was the son of Alois of Limburg Stirum.
He inherited the immediate lordship of Gemen from his uncle Ferdinand I of Limburg Stirum in 1791 and remained until his death in 1798.
Alois having survived his three sons, Gemen passed to his grandson Ferdinand IV of Limburg Stirum.
He married Maria Anna Vogel von Wassenhofen and they had five children:
Philipp Wilhelm of Limburg Stirum
Philipp Wilhelm of Limburg Stirum( 1695 – 1758), count of Limburg Stirum, was the second son of Moritz Hermann of Limburg.
He married NN, countess von Hoensbroech and they had five children:
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.
Ferdinand I of Limburg Stirum
Ferdinand Gotthard Meinrad of Limburg Stirum, count of Limburg," Fürst" von Styrum, sovereign lord zu Gemen, was born in 1701, son of Maximilian Wilhelm of Limburg Stirum.
He inherited the immediate lordship of Gemen at the death of his cousin the Prince- Bishop of Speyer, August Philipp of Limburg- Stirum- Gemen.
He married Katharina Karoline von Eptingen and they had one son, Ferdinand III, who died young.
Ferdinand I died in 1791 and Gemen passed to his nephew Karl Josef of Limburg Stirum.
Friedrich Karl of Limburg Stirum
Friedrich Karl of Limburg Stirum, count of Limburg Styrum and Bronckhorst, sovereign lord of Gemen, son of Otto Leopold of Limburg Stirum, was born in 1710.
He was lord of Gemen between 1743 and 1771.
He died in 1771 without descendants.
Gemen passed to his brother.
Otto Leopold of Limburg Stirum
Otto Leopold of Limburg Stirum, count of Limburg Styrum and Bronckhorst, sovereign lord zu Gemen and Raesfeld, was born in 1688 the son of Hermann Otto II of Limburg Stirum.
He became lord zu Gemen in 1704 at the death of his father, and remained until his death in 1754.
He also inherited from his grandfather Alexander IV count von
Velen zu Raesfeld the Lordship of Raesfeld.
He married in 1706 countess Anna Elisabeth von Schönborn (born 1686, died 1757) and they had issue:
Alois of Limburg Stirum
Karl Joseph Alois of Limburg Stirum, count of Limburg Stirum from the branch Limburg- Styrum- Iller- Aichheim, was the son of Maximilian Wilhelm of Limburg Stirum.
He was born in 1685 and died in 1738.
After his father's death he became sovereign lord of Simontornya.
He married countess Maria Theresia Keglevich( died 1728) in 1722 and their children were:

Question: Who is Otto Leopold Of Limburg Stirum's paternal grandfather?
Answer: Adolf Ernst of Limburg Stirum