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, Holy Roman Emperor
Otto II (955 – December 7, 983), called the Red ("Rufus"), was Holy Roman Emperor from 973 until his death in 983.
A member of the Ottonian dynasty, Otto II was the youngest and sole surviving son of Otto the Great and Adelaide of Italy.
Otto II was made joint-ruler of Germany in 961, at an early age, and his father named him co-Emperor in 967 to secure his succession to the throne.
His father also arranged for Otto II to marry the Byzantine Princess Theophanu, who would be his wife until his death.
When his father died after a 37-year reign, the eighteen-year-old Otto II became absolute ruler of the Holy Roman Empire in a peaceful succession.
Otto II spent his reign continuing his father's policy of strengthening Imperial rule in Germany and extending the borders of the Empire deeper into southern Italy.
Otto II also continued the work of Otto I in subordinating the Catholic Church to Imperial control.
Early in his reign, Otto II defeated a major revolt against his rule from other members of the Ottonian dynasty who claimed the throne for themselves.
His victory allowed him to exclude the Bavarian line of the Ottonians from the line of Imperial succession.
This strengthened his authority as Emperor and secured the succession of his own son to the Imperial throne.
With domestic affairs settled, Otto II would focus his attention from 980 onward to annexing the whole of Italy into the Empire.
His conquests brought him into conflict with the Byzantine Empire and with the Muslims of the Fatimid Caliphate, who both held territories in southern Italy.
After initial successes in unifying the southern Lombard principalities under his authority and in conquering Byzantine-controlled territory, Otto II's campaigns in southern Italy ended in 982 following a disastrous defeat by the Muslims.
While he was preparing to counterattack Muslim forces, a major uprising by the Slavs broke out in 983, forcing the Empire to abandon its major territorial holdings east of the Elbe river.
Otto II died suddenly in 983 at the age of 28 after a ten-year reign.
He was succeeded as Emperor by his three-year-old son Otto III, plunging the Empire into a political crisis.
Ermengarde of Zutphen
Ermengarde of Zutphen( died 1138) was countess of Zutphen( 1122–1138), succeeding her elder brother Henry II, Count of Zutphen( her other two brothers had taken holy orders and died respectively).
Their parents were Otto II, Count of Zutphen and Judith of Arnstein.
She first married around 1116 to Gerard II( † 1131), count of Guelders and of Wassenberg, and had:
Widowed, she remarried to Conrad II( † 1136), count of Luxembourg, but the marriage remained childless.
Otto II, Count of Waldeck
Otto II, Count of Waldeck( before 1307 – 1369) was Count of Waldeck from 1344 until his death.
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:
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.
Reginald I of Guelders
Reginald I of Guelders( 1255 – Monfort, October 9, 1326) was Count of Guelders from January 10, 1271 until his death.
He was the son of Otto II, Count of Guelders and Philippe of Dammartin .< br>
In 1276 he married Irmgard of Limburg, only daughter and heiress of Waleran IV, Duke of Limburg.
In 1279 he became Duke of Limburg and when Irmgard died childless in 1283, he became the only ruler of the Duchy of Limburg.
He lost this title after losing the Battle of Woeringen in 1288.
In 1286 he remarried Margaret of Flanders( 1272 – 1331), daughter of Guy, Count of Flanders from his second marriage, with Isabelle of Luxembourg.
They had 5 children: Financially ruined after the Battle of Woeringen, Guelders came under the influence of his father- in- law, the Count of Flanders.< br>
From 1318, he was replaced by his son, who imprisoned his father in 1320 in the Montfort Castle.
Reginald I died here 6 years later.
Otto II, Count of Rietberg
Otto II, Count of Rietberg( died 18 July 1389) was the ruling Count of Rietberg from 1365 until his death.
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.
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.

Question: What is the date of death of Otto Ii, Count Of Guelders's father?
Answer: 22 October 1229