* 1248 – The Dutch city of Ommen receives city rights and fortification rights from Otto III, the Archbishop of Utrecht.

Kanem reached its peak under Mai ( king ) Dunama Dibalemi ibn Salma ( 1210 – 1248 ).

# John ( 1246 / 1247 – 1248 ), died young

* 1242 – 1248: Abou el-Hassan el-Saïd el-Moutadid

* 1248 – In the middle of the night a mass on the north side of Mont Granier suddenly collapsed, in one of the largest historical rockslope failures known in Europe.

* 1248 – Conquest of Seville by the Christian troops under King Ferdinand III of Castile.

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.

* 1209 – Sancho II of Portugal ( d. 1248 )

* 1212 — The Battle of Las Navas de Tolosa in Iberia sees the beginning of a rapid Christian reconquest of the southern half of the Iberian peninsula, mainly from 1230 – 1248, with the defeat of Moorish forces.

* 1248 – 1254 — Seventh Crusade captures Egyptian Ayyubid port city of Damietta, Crusaders ultimately withdraw.

* March 21 – Robert II, Duke of Burgundy ( b. 1248 )

Originally from Bamberg in Franconia, now northern Bavaria, an apparent branch of the Babenbergs or Babenberger went on to rule Austria as counts of the march and dukes from 976 – 1248, before the rise of the house of Habsburg.

The first written account of using medicine and entomology to solve ( separate ) criminal cases is attributed to the book of Xi Yuan Lu ( translated as " Washing Away of Wrongs "), written in Song Dynasty China by Song Ci ( 宋慈, 1186 – 1249 ) in 1248.

The History of Jin 《 金史 》 ( compiled by 1345 ) states that in 1232, as the Mongol general Subutai ( 1176 – 1248 ) descended on the Jin stronghold of Kaifeng, the defenders had a " thunder-crash bomb " which " consisted of gunpowder put into an iron container ... then when the fuse was lit ( and the projectile shot off ) there was a great explosion the noise whereof was like thunder, audible for more than a hundred li, and the vegetation was scorched and blasted by the heat over an area of more than half a mou.

* c. 1248 – Ibn al-Baitar wrote on botany and pharmacy, studied animal anatomy and medicine veterinary medicine.

On separate occasions, in return for loans from the treasury of Guelders, the bishop of Utrecht granted the taxation and administration of the Veluwe, and William II --- Count of both Holland and Zeeland, and who was elected anti-king of the Holy Roman Empire ( 1248 – 1256 )--- similarly granted the same rights over Nijmegen ; as neither ruler proved able to repay their debts, these lands became integral parts of Guelders.

# Mary ( 1248 – 1267 ), nun

Besides Peter, there was another possible claimant, the fifteen-year-old Thomas III of Piedmont ( 1248 – 82 ), the eldest son of Peter's elder brother Thomas, Count of Flanders.

# Maud Marshal ( 1194 – 27 March 1248 ), married ( 1 ) Hugh Bigod, 3rd Earl of Norfolk, they had four children ; ( 2 ) William de Warenne, 5th Earl of Surrey, they had two children ; ( 3 ) Walter de Dunstanville.

# Henry II of Brabant ( 1207 – 1248 )

* Robert II, Duke of Burgundy ( 1248 – 1306 )

* Cunigunde of Hohenstaufen ( 1200 – 1248 ), married King Wenceslaus I, King of Bohemia

* Charles II of Naples ( 1248 – 1309 )

* 1218 – 1248 Irmgard, heiress of Berg, marries in 1217 Henry IV, Duke of Limburg

The foundation of the town of Neubrandenburg took place in 1248, when the Margrave of Brandenburg decided to build a town in the northern part of his fief.

In 1248, when King Béla ordered stone castles to be built throughout the kingdom, several new castles were constructed in Borsod county too ( Cserépvár, Csorbakő, Dédes, Diósgyőr, Éleskő ), many in places of former, destroyed motte castles.

It was the seat of the archbishops, who ruled the surrounding area and ( from 1248 to 1880 ) built the great Cologne Cathedral, with sacred relics that made it a destination for many worshippers.

* Cologne Cathedral is completed, after construction began in 1248, 632 years earlier.

Construction of the present Cologne Cathedral was begun in 1248 to house these important relics.

He died on 28 September 1261 and is buried in the cathedral of Cologne, of which he laid the cornerstone on 15 August 1248.

The high choir of Cologne Cathedral ( 1248 – 1322 ) is considered as one of the finest Rayonnant structures of the Middle Ages.

Seville Cathedral was built to demonstrate the city's wealth, as it had become a major trading center in the years after the Reconquista in 1248.

Nave of the Seville CathedralImportant historic buildings from this period include the Seville Cathedral, completed in 1506 ; after Seville was taken by the Christians ( 1248 ) in the Reconquista, the city's mosque had been converted to a church.

Until it was completed in 1248, the relics were housed at chapels at the Château de Vincennes and a specially built chapel at the Château de Saint-Germain-en-Laye.

The Constance Tower, completed in 1248, is all that remains of the castle built in Louis IX's reign.

A new combined junior high / high school was built in 1955 at 1248 Buffalo Street, just northwest of the existing school site.

After two storms in 1248, the abbey of Egmond, which had much property in this region, built the Schagerdam at Schagen.

A castle he had built in 1248 was the beginning of the city of The Hague.

In 1248 the Capitano Ugolino Arsopachi built the Channels.

For the next three years Louis collected an ecclesiastical tenth ( mostly from church tithes ), and in 1248 he and his approximately 15, 000-strong army that included 3, 000 knights, and 5, 000 crossbowmen sailed on 36 ships from the ports of Aigues-Mortes, which had been specifically built to prepare for the crusade, and Marseille.

It was then in the hands of the Venetians as security for a heavy loan ( 13, 134 gold pieces ), but it was redeemed and conveyed to Paris where St. Louis built the Sainte-Chapelle ( completed 1248 ) to receive it.

In the inscription of bridge, it is written that the bridge was built by Atabeg İzzü ’ d-Din Muhammed in 646 of the Hegira / 1248 of the Christian era during the rule of Keykavus, the son of Keyhüsrev.

* The Church of the Trinitarians ( 1248 ) built in the Gothic style with two parallel naves and the adjacent cloister.

The site of Andechs was originally occupied by a castle belonging to the counts of Dießen on the Ammersee, probably built on a Roman castrum, and remained the seat of the powerful counts of Dießen-Andechs ( 1135 to 1180 ) and dukes of Andechs-Merania ( 1180 to 1248 ).

The building was built between 1595 and 1597, although justice had been administered earlier in another building at the same place called the Casa Cuadra since shortly after the reconquest of the city in 1248.