Henry I, Count of Guelders
Henry I, Count of Guelders( 1117–1182) was Count of Guelders from 1131 until 1182.
He was a son of Gerard II of Guelders and Ermgard of Zutphen.
In 1138 Hendrik inherited the County of Zutphen from his mother.
Hendrik was under tremendous pressure from the Bishopric of Utrecht and the County of Holland, and was forced by Holland to negotiate a treaty with the city of Utrecht; this led to a problematic relation with the Bishop of Utrecht.
In 1135 Hendrik married Agnes of Arnstein, daughter of count Louis III of Arnstein.
Their daughter Adelaide married Gérard II, Count of Looz.
Hendrik died in 1182 and was succeeded by his son Otto I of Guelders.
He is buried at Kloosterkamp, probably the prestigious Cistercian abbey of Kloster Kamp.
Joan, Countess of Chiny
Joan( c. 1205 – 17 January 1271) was the Countess of Chiny.
Joan was the daughter of Louis IV, Count of Chiny, and Matilda of Avesnes, and became ruler of the county upon her father ’s death on 7 October 1226.
She married Arnold IV, Count of Loon, son of Gerard III, Count of Rieneck, and Kunigunde von Zimmern, in 1228, whereupon he assumed the role of Count of Chiny.
Joan and Arnold had the following children:
She was succeeded as ruler of Chiny by her husband, Arnold II, Count of Chiny.
Gerhard V of Jülich
Gerhard V of Jülich( before 1250 – 29 July 1328), Count of Jülich( 1297 – 1328), was the youngest son of William IV, Count of Jülich and Richardis of Guelders, daughter of Gerard III, Count of Guelders.
Gerhard succeeded his brother Walram as Count of Jülich in 1297.
He supported King Adolf in the Battle of Göllheim in 1298, but when Adolf was killed by King Albert I, Gerhard submitted to Albert and was allowed to keep his imperial fief.
He helped Albert against the Rhenish electors in 1300, which confirmed his interests with respect to Cologne.
Gerhard also won the river duties of Kaiserswerth, Mönchen- Gladbach, Kessel- Grevenbroich, Rheydt, Münstereifel/ Bergheim and Müllenark, among others.
In 1313, Gerhard supported Ludwig IV in the succession war for the throne of Germany and allowed Ludwig's coronation in Aachen against the will of the Archbishop of Cologne.
Reginald II, Duke of Guelders
Reginald II of Guelders, called" the Black"( c. 1295 – 12 October 1343), was Count of Guelders, and from 1339 onwards Duke of Guelders, and Zutphen, in the Low Countries, from 1326 to 1343.
He was the son of Reginald I of Guelders and Marguerite of Flanders.
Otto I, Count of Guelders
Otto I of Guelders (1150–1207) was a Count of Guelders and Zutphen from 1182 until his death in 1207.
He was a son of Duke Hendrik of Guelders and Agnes of Arnstein.
He married Richardis of Bavaria in 1184.
Richardis was a daughter of Otto
I Wittelsbach, Duke of Bavaria.
Gerard II, Count of Guelders
Gerard II was Count of Guelders from March 1129 until his death on October 24, 1131.
He was the son of Gerard I, Count of Guelders.
Around 1116, Gerard married Ermgard of Zutphen, daughter of Otto II, Count of Zutphen and Judith of Arnstein.
They had two children:
Walram, Count of Jülich
Walram, Count of Jülich( 1240/45 – Battle of Furnes, 20 August 1297) was the second son of William IV, Count of Jülich and Richardis of Guelders, daughter of Gerard III, Count of Guelders.
In 1278, Walram succeeded his father as Count of Jülich when his father and his elder brother, William, were slain together in Aachen.
He served as Provost at Aachen as late as 1279/ 1280.
Walram was a fierce opponent of the Archbishop of Cologne and a partisan of the Duke of Brabant in the War of succession for Limburg.
In the Battle of Woeringen in 1288 he captured Archbishop Siegfried, which enabled him to gain supremacy over the Archbishop.
He won Zülpich among others and secured his other fiefs.< br>
Walram was killed in the Battle of Furnes on 20 August 1297, fighting alongside Guy, Count of Flanders against the French.
Gerard III, Count of Guelders
Gerard III of Guelders (1185 – 22 October 1229) was the Count of Guelders and Zutphen from 1207 until his death in 1229.
He was a son of Count Otto I of Guelders, and is sometimes called Gerard IV or
Gerard V. He married Margaretha of Brabant, the daughter of Duke Hendrik I of Brabant, in 1206.
Otto II, Count of Guelders
Otto II, Count of Guelders( Dutch: Otto II, Graaf van Gelre) was a nobleman from the 13th century.
He was the son of Gerard III, Count of Guelders and Margaretha of Brabant.
Gerard, Count of Rieneck
Gerard( died 1216), Count of Rieneck, son of Gerard, Count of Loon, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein.
Virtually nothing is known about his life other than his children who succeeded their uncles as Counts of Looz.
Gerard married Cunegonde von Zimmern, daughter of Sibodo III, Count of Zimmern.
Gerard and Cunegonde had five children: Gerard was succeeded as Count of Rieneck by his brother Arnold.

Question: Who is the mother of Gerard Iii, Count Of Guelders?
Answer: Richardis of Bavaria