Andrew's first mission to the East was when he was asked by the French king Louis IX to go and fetch the Crown of Thorns which had been sold to him by the Latin Emperor of Constantinople Baldwin II in 1238, who was anxious to obtain support for his tottering empire.

Memorable also is the siege laid to Brescia by the Emperor Frederick II in 1238 on account of the part taken by this city in the battle of Cortenova ( 27 November 1237 ).

In 1238, Byzantium was governed by Latin Emperor Baldwin of Constantinople.

In 1238 Baldwin II, the Latin Emperor of Constantinople, anxious to obtain support for his tottering empire, offered the Crown of Thorns to St. Louis, King of France.

In 1238 they were recognized as free commune by Emperor Frederick II.

Manuel I Megas Komnenos ( Greek: Μανουήλ Α ΄ Μέγας Κομνηνός, Manouēl I Megas Komnēnos ) ( c. 1218 – March 1263 ), Emperor of Trebizond from 1238 to 1263, surnamed the " Great Captain ", was the second son of Alexios I, the first emperor of Trebizond, and Theodora Axuchina.

John I Megas Komnenos Axouchos (, Iōannēs I Megas Komnēnos Axoukhos ) was Emperor of Trebizond from 1235 to 1238.

* December 31 – Frederick III, Duke of Lorraine ( b. 1238 )

* Margaret of Navarre in 1255 married to Frederick III, Duke of Lorraine ( 1238 – 1303 )

Frederick III () ( 1238 – December 31, 1302 ) was the Duke of Lorraine from 1251 to his death.

He fought with a contingent of English under Henry de Turbeville in the aid of Frederick II, King of Germany in the north of Italy in 1238.

* 1238 – The Battle of the Sit River is fought in the northern part of the present-day Yaroslavl Oblast of Russia between the Mongol Hordes of Batu Khan and the Russians under Yuri II of Vladimir-Suzdal during the Mongol invasion of Russia.

* 1238 – Joan of England, Queen Consort of Scotland, wife of Alexander II ( b. 1210 )

* 1238 – Yuri II, Grand Prince of Vladimir ( b. 1189 )

* Yuri II, grand prince of Vladimir ( d. 1238 )

* Meinhard II of Gorizia-Tyrol ( b. 1238 )

* July 22 – Joan of England, Queen consort of Scotland, wife of Alexander II of Scotland ( d. 1238 )

The 27-year-old Duke Albert ( married since 1274 to a daughter of Count Meinhard II of Gorizia-Tyrol ( 1238 – 95 )) was capable enough to hold some sway in the new patrimony.

# Joan ( 22 July 1210 – 1238 ), the wife of King Alexander II of Scotland.

The major attempt made by Inäzor Purgaz from Arzamas in January 1229 was repulsed, but after the death of Yuri II on March 4, 1238 at the Battle of Sit River the Mongols occupied the fortress and the remnants of small Nizhny Novgorod settlement which surrendered without any resistance in order to preserve what had been developed since Purgaz's attack nine years earlier.

In 1232, al-Kamil installed his eldest son as-Salih Ayyub to govern Hisn Kayfa, but on al-Kamil's death in 1238, as-Salih Ayyub disputed control of Egypt with his younger brother al-Adil II who had been proclaimed sultan in Cairo.

* Joan of England, Queen Consort of Scotland ( 1210 – 1238 ), daughter of King John of England, married Alexander II of Scotland

* Theobald II of Navarre ( 1238 – 1270 ) married in 1255 to Isabelle of France

Theobald II ( c. 1238 – December 4, 1270 ) ( French: Thibaud or Thibault, Spanish: Teobaldo ), called the Young, was Count of Champagne and Brie ( as Theobald V ) and King of Navarre from 1253 until his death.

* 1218 – 1238 Yuri II, restored

* 1238 – 1246 Yaroslav II, fourth son of Vsevolod the Big Nest

The territory's ethnic diversity increased with the influx of some 40, 000 Cuman settlers, who came to the Pannonian Basin after their defeat by Volodymyr II ( Monomakh ) of Kiev in the 12th century and their ultimate defeat at the hands of the Tatars in 1238.

* Yaroslav II of Vladimir ( 1191 – 1246 ), Grand Prince of Vladimir ( 1238 – 1246 )

Yuri II (), also known as George II of Vladimir or Georgy II Vsevolodovich ( 11894 March 1238 ), was the fourth Grand Prince of Vladimir ( 1212 – 1216, 1218 – 1238 ) who presided over Vladimir-Suzdal at the time of the Mongol invasion of Russia.

The latter were taken advantage of by the Rasulids of Yemen who attempted to end Ayyubid suzerainty in the Hejaz and bring the region under their control which they did in 1238 when Nur al-Din Umar captured Mecca.

Bečej was mentioned first during the administration of the Kingdom of Hungary in 1091 under Latin name Bechey and later in 1238 under Hungarian name Becse.

His reign, however, ended in catastrophe, when the Mongol hordes under Batu Khan took and burnt Vladimir in 1238.

They completed the conquest of the Kingdom of Georgia in 1238 ; however, the Mongol Empire began to attack western parts of Greater Armenia which was under the Seljuks the next year.

After three years, during which the head of the congregation had gone to Rome as the accredited representative of abbess Agnes, and the congregation had been formally constituted an order under the Rule of St. Augustine by Gregory XI ( 1238 ), the abbess resigned all jurisdiction over the hospital and its possessions into the hands of the Holy See the next year.

Previously, in 1229, they had asked for asylum from King Béla IV of Hungary, who in 1238 finally offered refuge to the remainder of the Cuman people under their leader Kuthen ( Hungarians spelled his name Kötöny ).

The town of Kashin was first mentioned in a chronicle under the year of 1238, when it was sacked by the Mongols.

Joan died in March 1238 in Essex, and in the following year, 1239, Alexander remarried.

Joan of England, ( 22 July 1210 – 4 March 1238 ), was the eldest legitimate daughter and third child of John of England and Isabella of Angoulême.

Joan died in Essex in 1238, and was buried at Tarant Crawford Abbey in Dorset.

He lived mostly in France, where he married Matilda, the heiress of Boulogne, in 1238, thereby becoming Count of Boulogne.

In 1238 the Dominican Order was invited to build a monastery on a grant of land.

* 1238 – The Mongols burn the Russian city of Vladimir.

Image: Chinesischer Maler von 1238 001. jpg | Portrait of the Zen Buddhist Wuzhun Shifan, 1238 AD, Chinese

The town received its charter in 1238, although there is evidence of earlier settlement-for example, a record of a chapel in 1177, and some indications of a possible Roman presence.

In 1237 – 1238 the Mongols burnt down the city of Vladimir ( 4 February 1238 ) and other major cities of northeast Russia, routed the Russians at the Sit ' River, and then moved west into Poland and Hungary.

Saint Hedwig of Silesia (), also Saint Hedwig of Andechs (, ) ( 1174 – 15 October 1243 ) from the comital House of Andechs was Duchess of Silesia from 1201 and of Greater Poland from 1231 as well as High Duchess consort of Poland from 1232 until 1238.

In 1238, upon his death, Henry was buried at a Cistercian monastery of nuns, Trzebnica Abbey ( Kloster Trebnitz ), which he had established in 1202 at Hedwig's request.

* 1210 – Joan of England, Queen of Scotland ( d. 1238 )

The crusaders may have been aware of the new divisions among the Ayyubids ; al-Kamil had occupied Damascus in 1238 but had died soon afterwards, and his territory was inherited by his family.

* 1238 – James I of Aragon conquers Valencia and founds the Kingdom of Valencia.

Through papal favour he received a canonry at Saint-Quentin in 1238 and spent the period 1248 – 1259 as a canon of the cathedral chapter in Rouen, finally as archdeacon.

In 1238 he was made cardinal bishop of Sabina.

In 1238 Pope Gregory IX formed an alliance between Genoa and Venice against the empire, and consequently against Pisa too.

** Marie ( 119815 August 1238 ); married firstly Philip I of Namur, had no issue.

* 1238 – Muslim Valencia surrenders to the besieging King James I of Aragon the Conqueror.