Founder of the House of Schleswig-Holstein-Gottorp

Adolf of Denmark or Adolf of Holstein-Gottorp was the first Duke of Holstein-Gottorp from the line of Holstein-Gottorp of the House of Oldenburg.

He was the third son of King Frederick I of Denmark and his second wife, Sophie of Pomerania. King Frederick I had his son educated by Philip I, Landgrave of Hesse. He spent four years at the Landgrave's castle in Kassel.

In 1544, Adolf, his brother Johann, and their half-brother King Christian III of Denmark, divided the duchies of Schleswig and Holstein. The areas were divided according to approximately equal tax proceeds. Adolf, as the youngest, was entitled to the first choice. Since he selected the part with the castle Gottorp, the line of the house Oldenburg created by him was called Schleswig-Holstein-Gottorp.

Partition of Holstein and Schleswig

Until the Treaty of Speyer, concluded on 23 May 1544, Adolf's half-brother Christian III of Denmark ruled the entire Duchies of Holstein and Schleswig in the name of the then still minor Adolf and his brother John the Elder (Hans den Ældre). They determined their youngest brother Frederick was to have a career as Lutheran administrator. In 1551 Frederick became administrator of the Prince-Bishopric of Hildesheim.

In 1544, following negotiations between the elder three brothers and the nobility of the duchies, the brothers decided to partition the duchies of Holstein and Schleswig between themselves. The revenues of the duchies were divided into three equal shares by assigning the revenues of particular areas and landed estates to each of the elder brothers. Other general revenues, such as taxes from towns and customs duties, were levied together and then shared among the brothers.

The secular rule in the fiscally divided duchies was shared between the brothers. As dukes of Holstein and Schleswig the three brothers bore the formal title of "Duke of Schleswig, Holstein, Ditmarsh and Stormarn". Adolf founded a cadet branch of the royal Danish House of Oldenburg called the House of Holstein-Gottorp.

John the Elder, the Duke of Schleswig-Holstein-Haderslev, produced no issue, so no branch emerged from his side. After his death in 1580, Adolf and his nephew Frederick II of Denmark halved John's share among themselves.

Adolf travelled, entrusting Johan Rantzau to manage his country. Adolf participated in the Diet of Augsburg where he witnessed Emperor Charles V at the high point of his power. In 1553 Adolf returned to his homeland. In 1556 Adolf succeeded his younger brother Frederick as Bishop of Schleswig.

Marriage

On 17 December 1564 he married Christine, daughter of Philip I, Landgrave of Hesse,