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.
Ferdinand IV of Limburg Stirum
Ferdinand IV August Carl Joseph Johannes Nepomuk Thaddeus, count of Limburg Styrum Zu Illereichen,( 24 September 1785- 5 December 1800) was sovereign lord of the immediate lordship of Gemen.
He was born in 1785, the son of Johann of Limburg Stirum and his wife Maria Walpurga vom Stain Zu Rechtenstein.
At the age of 13, when his grandfather Karl Josef of Limburg Stirum died, he inherited the immediate lordship of Gemen along with the associated seat on the Bench of Counts of Westphalia in the Imperial Diet.
He also inherited the fortress of Simontornya in Hungary.
With his death at the age of 15, the Gemen- branch of the House of Limburg Stirum became extinct.
Historians assume that the Styrum- branch of the House of Limburg Stirum took over his seat in the Imperial Diet.
Gemen went to Reichsfreiherr Aloys von Boineburg- Bömelberg Zu Erolsheim.
It was mediatized in 1806 to the princes of Salm- Kyrburg.
Maximilian Wilhelm of Limburg Stirum
Maximilian Wilhelm of Limburg Stirum (1653–1728), count of Limburg Styrum, sovereign lord of Illereichen and Simontornya.
He was the third son of Adolf Ernst of Limburg Stirum, sovereign lord zu Gemen.
He married in 1677 countess Maria Anna von Rechberg and Rothenlöwen (died 1738).
He left 14 children:
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.
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:
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:
Johan Paul van Limburg Stirum
Johan Paul, Count of Limburg-Stirum (2 February 1873 – 17 April 1948) was a Dutch diplomat, member of the House of Limburg-Stirum, Governor-General of the Dutch East Indies (1916-1921), Dutch emissary in Berlin (1925-1936) and London (1936-1939).
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.
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.

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