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.

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.

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

* Magnus VI of Norway ( 1238 – 1280 )

* 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.

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

* 1283 – October 3 – Dafydd ap Gruffudd, the last native Prince of Wales ( b. c. 1238 )

But it was in the 13th century, with the arrival of the first monarch of the Nasrid dynasty, Mohammed I ibn Nasr ( Mohammed I, 1238 – 1273 ), that the royal residence was established in the Alhambra.

* December 26 – Valdemar I, king of Sweden 1250 – 1275 ( b. c. 1238 / 1239 )

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

* April 3 – Nizamuddin Auliya, Sufi saint ( b. 1238 )

* December 4 – Theobald V of Champagne, King of Navarre ( b. c. 1238 )

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

* 6 terms: Richard Renger ( 1222 – 1226, 1238 ); Hamo de Chigwell ( 1319, 1321, 1322, 1324, 1325, 1327 )

* San Francesco d ' Assisi, a late Romanesque church ( 1238 – 98 ) with a restored Gothic façade, located on Corso Cairoli.

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.

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.

Before Hulegu set forth toward Persia, the threat to the Muslim world posed by the swelling Mongol force was perceived by the Ismaili Imam ‘ Ala al-Din Muhammad, who in 1238 joined the Abbasid caliph, al-Mustansir, in appealing to the European monarchs of England and France to coalesce in a Christian-Muslim alliance against the Mongols.

The Mongols captured the Alania capital, Maghas, in 1238.

Like other towns of the Eastern Rus, Kostroma was sacked by the Mongols in 1238.

In 1238, when the Mongols first invaded Kyiv Rus and his elder brother Yuri was killed in battle, Yaroslav left Kiev for Vladimir, where he was crowned grand prince.

In March 1238 the Mongols, who had routed Yuri II Vsevolodovich ’ s troops and killed him, continued their march, and in the Vyatichi lands they came upon the town of Kozelsk, and they struggled 7 weeks to crush it.

In 1238, Vshchizh was destroyed by the Mongols.

The Mongols spent the summer of 1238 resting along the Don River.

In 1238, Yuriev was sacked by the Mongols.

The Mongols burned it in 1238, but did not proceed northward to Novgorod.

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

Destroyed in 1238 by the Mongol-Tartar invasion, the Moscow Kremlin was rebuilt by the Russian Knyaz Ivan Kalita.

On the Mediterranean coast, James I of Aragon, proceeded to conquer the Balearic Islands ( from 1228 over the following four years ) and Valencia ( the city capitulated September 28, 1238 ).

As-Salih Ayyub eventually occupied Damascus in December 1238, but his uncle as-Salih Ismail took back the city in September 1239, although he himself was detained by his cousin an-Nasir Dawud in Karak in order to prevent his arrest by al-Adil.

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 ).

King Mangrai was born on October 2, 1238 in Ngoen Yang, ( present day Chiang Saen ), in Thailand on the Mekong River, as the son of the local ruler Lao Meng and his wife Ua Ming Chommueang, a princess from the Tai Lue city of Chiang Rung, which is now called Jinghong, in Sipsongpanna ( Xishuangbanna ), Yunnan, China.

Indeed, Papal documents say that in 1238, a Cathedral to Saint Paul was built in the city.

Since 1238 the royal town was owned by the Přemyslids and it became a rich city with many churches.

Indeed, Papal documents say that in 1238, a Cathedral to Saint Peter was built in the city.

From 1102 to 1238, the former Benedictine Priory and Cathedral of St Mary in the city was the seat of the early Bishops of Coventry ( previously known as Bishops of Chester or of Lichfield ).

Murten was first mentioned as a city in 1238.

Valencia and its suburbs Manises and Paterna became important centres after potters migrated there from the south ; the city had returned to Christian rule from 1238, and the immigration of skilled potters had been going on since at least the mid-14th century.

He entered the city of Valencia on 9 October 1238, which is regarded as the dawn of the Kingdom of Valencia.