Bishop Christian asked the new Pope Honorius III for the consent to start another Crusade, however a first campaign in 1217 proved a failure and even the joint efforts by Duke Konrad with the Polish High Duke Leszek I the White and Duke Henry I the Bearded of Silesia in 122 / 23 only led to the reconquest of Chełmno Land but did not stop the Prussian invasions.

At least Christian was able to establish the Diocese of Chełmno east of the Vistula, adopting the episcopal rights from the Masovian Bishop of Płock, confirmed by both Duke Konrad and the Pope.

He obtained a charter by Emperor Frederick II issued in the 1226 Golden Bull of Rimini, whereby Chełmno Land would be the unshared possession of the Teutonic Knights, which was confirmed by Duke Konrad of Masovia in the 1230 Treaty of Kruszwica.

In 1226 Duke Konrad I of Masovia summoned the Teutonic Knights for assistance ; by 1230 they had secured Chełmno ( Culm ) and begun claiming conquered territories for themselves under the authority of the Holy Roman Empire, although these claims were rejected by the Poles, whose ambition had been to conquer Prussia all along.

Also, the Teutonic Knights were invited to Prussia by Duke Konrad of Masovia to Christianise the Prussians in 1226.

In 1229 he was captured and arrested at Płock Castle by rivaling Duke Konrad I of Masovia.

Konrad I, the Polish Duke of Masovia, unsuccessfully attempted to conquer pagan Prussia in crusades in 1219 and 1222.

Duke Konrad I of Masovia in west-central Poland appealed to the Knights to defend his borders and subdue the pagan Baltic Prussians in 1226.

In 1225 Duke Konrad I of Masovia asked the Teutonic Knights to protect his territory from such raids.

After a number of years Duke Konrad I of Masovia invited the Teutonic Knights to Christianize the pagan Prussians in 1226.

The order of march of the German army was as follows: the three Bavarian contingents, the Frankish contingent under Duke Konrad, the royal unit ( the center ), the two contingents of Swabians and the Bohemian contingent.

Henry IV was the only son of Duke Henry III the White of Silesia-Wrocław by his first wife Judith, daughter of Duke Konrad I of Masovia.

* February 14 – Konrad VII the White, Duke of Oleśnica

The second time happened two years later, when Henry the Bearded was captured by Duke Konrad I of Masovia.

However, the will was ignored by Duke Konrad of Masovia and Władysław's III nephew Władysław Odonic.

Upon the invitation of Duke Konrad I of Masovia, the Teutonic Knights took possession of Prussia in the 13th century and created a monastic state to administer the conquered Old Prussians.

Freiburg was founded by Konrad and Duke Bertold III of Zähringen in 1120 as a free market town ; hence its name, which translates to " free ( or independent ) town ".

The first well organised mercenaries in Italy were the Ventura Companies of Duke Werner von Urslingen and Count Konrad von Landau.

In the course of the fragmentation under Duke Bolesław II the Bald and his younger brother, the Duchy of Głogów under Duke Konrad I was established in 1251.

Philip's father-in-law George, Duke of Saxony, the bishop of Würzburg, Konrad II von Thungen, and the archbishop of Mainz, Albert III of Brandenburg, were active in agitating against the growth of the Reformation.

Born in Innsbruck, he was the son of Duke Ernest the Iron of the Leopoldinian line of the Habsburg family, the ruler of Inner Austria, i. e. the duchies of Styria, Carinthia and Carniola, and of Ernest's wife Cymburgis of Masovia.

After 1806 he used the titles: " We, Francis the First, by the grace of God Emperor of Austria ; King of Jerusalem, Hungary, Bohemia, Dalmatia, Croatia, Slavonia, Galicia and Lodomeria ; Archduke of Austria ; Duke of Lorraine, Salzburg, Würzburg, Franconia, Styria, Carinthia and Carniola ; Grand Duke of Cracow ; Grand Prince of Transylvania ; Margrave of Moravia ; Duke of Sandomir, Masovia, Lublin, Upper and Lower Silesia, Auschwitz and Zator, Teschen and Friule ; Prince of Berchtesgaden and Mergentheim ; Princely Count of Habsburg, Gorizia and Gradisca and of the Tirol ; and Margrave of Upper and Lower Lusatia and in Istria ", President of the German Confederation.

* Janus I, Duke of Masovia

* Janus II, Duke of Masovia

Soon after Jadwiga's coronation, new suitors for Jadwiga's hand appeared: Duke Siemowit IV of Masovia and Grand Duke Jogaila of Lithuania, the latter supported by the lords of Lesser Poland.

Some, however, were reluctant to break their oath to Sigismund, while others favoured a native prince, Duke Siemowit IV of Masovia.

The full inscription read: Iste est gladius Principis et haeredis Boleslai Ducis Poloniae et Masoviae, Lanciciae (" This is a sword of Hereditary Prince Boleslaus, Duke of Poland, Masovia, and Łęczyca ").

* September 28 – Cymburgis of Masovia, wife of Duke Ernest the Iron of Inner Austria ( b. 1394 )

* English translation: Michael I, by the Grace of God, King of Poland, Grand Duke of Lithuania, Ruthenia, Prussia, Masovia, Samogitia, Livonia, Smolensk, Kiev, Volhynia, Podolia, Podlaskie, Severia and Chernihiv, etc.

* English translation: John III, by the grace of God King of Poland, Grand Duke of Lithuania, Ruthenia, Prussia, Masovia, Samogitia, Livonia, Smolensk, Kiev, Volhynia, Podlasie, Severia and Chernihiv, etc.

Back and forth Duclos had to go, between M. De Cury and Jean Jacques and between the Duke D'Aumont and Jean Jacques again, as his little operetta, The Village Soothsayer, though still unperformed, took on ever more importance.

After Duke Eudes's defeat, Aquitaine pledged allegiance formally to the new rising Carolingian dynasty, but still remained out of Frankish central rule until 768 ( Duke Waifer defeated ).

Zonker, still not ready for the “ real world ”, was living with Mike and JJ until he was accepted as a medical student at his Uncle Duke ’ s “ Baby Doc College ” in Haiti.

hDuke and xDuke can still be played online in multiplayer ' DukeMatch ' format using launchers such as Duke Matcher and YANG, both freely available.

The next year Henry's ally Władysław III Spindleshanks succeeded Leszek I as High Duke ; however as he was still contested by his nephew in Greater Poland, he made Henry his governor at Kraków, whereby the Silesian duke once again became entangled into the dispute over the Seniorate Province.

King Richard, who had been captured by the Duke of Austria on his way back, was believed to still be in the arms of his captors.

* HMS Iron Duke named after Wellington, is the name of three ships in the Royal Navy, one of which is still in active service ( a frigate )

Jogaila, a Grand Duke since 1377, was himself still a pagan.

After the death of Emperor Henry VI, who had recently also conquered the Kingdom of Sicily, the succession became disputed: as Henry's son Frederick was still a small child, the partisans of the Staufen dynasty elected Henry ’ s brother, Philip, Duke of Swabia, king in March 1198, whereas the princes opposed to the Staufen dynasty elected Otto, Duke of Brunswick, of the House of Welf.

His seal from after 1066, of which 6 impressions still survive, stressed his role as king but separately mentioned his role as Duke, and was made for him after he conquered England.

It was given to his nephew, Philippe I, Duke of Orleans, brother of Louis XIV, whose descendants still bear the surname.

Unlike Lord Snowdon and Captain Phillips, Sarah has never remarried and still attends some functions with her daughters, such as the investiture of The Duke of York into the Royal Victorian Order, on which occasions she is afforded the courtesy of treatment as a member of the Royal Family, although the Lord Chamberlain's Diamond Jubilee Guidelines mention the Duchess specifically as being a member of the Royal Family in her own right.

Catherine was still young and marriageable, a source of concern to the Lord Protector of England, the king's uncle, Humphrey, Duke of Gloucester.

Albert Victor's brother, Prince George, Duke of York, now second in line to the throne, evidently became close to May during their shared period of mourning, and Queen Victoria still favoured May as a suitable candidate to marry a future king.

After a Supreme Court case, Griggs v. Duke Power Company, found that neutral application tests and procedures that still resulted in de facto segregation of employees ( if previous discrimination had existed ) were illegal, more companies began implementing quotas on their own.

Francis was the only son of Charles, Count of Angoulême and Louise of Savoy and a great-great-grandson of King Charles V. His family was not expected to inherit the throne, as his third cousin King Charles VIII was still young, as was his father's cousin the Duke of Orléans.

While unfortunate, this in itself was not great cause for concern, since Burgundy still had two living sons, Louis, Duke of Bretagne, and finally his youngest son, the future Louis XV.

In Belgium, the title of Duke of Brabant ( historically the most prestigious in the Low Countries, and containing the federal capital Brussels ), if still vacant, has been awarded preferentially to the eldest son and heir presumptive of the king, other male dynasts receiving various lower historical titles ( much older than Belgium, and in principle never fallen to the Belgian crown ), such as Count of Flanders ( King Leopold III's so-titled brother held the title when he became the realm's temporary head of state as prince-regent ) and Prince of Liège ( a secularised version of the historical prince-bishopric ; e. g., the present King Albert II until he succeeded his older brother Baudouin I ).

There is, however, one exception ; the title Hertog van Limburg ( Duke of Limburg ) still exists.

While his heir Louis-Charles was still a minor, the Count of Provence, the Duke of Orléans or, if either was unavailable, someone chosen by election should become regent, completely passing over the rights of Charles who, in the royal lineage, stood between the Count of Provence and the Duke of Orléans.

Queen Elizabeth II of the United Kingdom still claims the medieval French title of Duke of Normandy, and this provides the legal status of the Channel Islands as Crown Dependencies.