Although documents directly relating to the construction of the castle in Darłowo have not been found yet, the results of archaeological and architectural and historical premises allow us to date back the creation of the castle to the second half of the fourteenth century.
It was during the reign of the prince of the House of Griffins, Boguslaw V and Elizabeth, the daughter of King Casimir the Great.
The prince purchased the island with a mill in 1352 from a rich burgher of Darłowo – Elizabeth von Behr – in order to build a fortress on it.
Over the decades, a castle had grown on the island, which in its main outlines has survived to this day.
The work of Boguslaw V was at that time so representative that so that as early as in 1372 a congress of the Pomeranian princes – brothers and cousins Boguslaw took place within its walls.
The first sovereign, who modernised the defence system and extended the castle was Prince Eric the Pomeranian.
It took place in the years 1449 to 1459, when after the loss of the throne of Scandinavia, the dethroned king returned to his legacy.

An old king was accompanied by a beautiful and young servant-maid Cecilia, who was the love of his life.
Historians still argue about who this mysterious woman really was.
Some of them maintain that in the last years of his life, reaching his seventies – she became his wife.
One of the contemporary chronicles mention her as "the queen Cecilia".

Shrouded in mystery, the history of the great love of King Eric and Cecilia became an inspiration for artists.
The poem "The Return of the Prince Eric" was created by a poet and writer of Koszalin – Czeslaw Zea, and an American journalist and writer Lucie Lehmann – Barclay has been penetrating the archives of Denmark, Sweden, Norway, Germany and the UK for several years in search of traces of Cecilia and Eric.
The aim of the writer is to create a love novel of this unique pair based on historical facts.

The initial appearance of a medieval fortress of Darłowo was an inspiration to build a similar but larger Kronborg Castle by King Erik in Denmark, where after years, William Shakespeare placed the action of "Hamlet".

The castle of Darłowo is also associated with the figure of Eric Pomerania's granddaughter – Princess Sophia.
Legend attributes to her, apparently contrary to the historical facts, cruelty, for which she lingers as the White Lady after her death, circling the castle.
The character of Princess Sophia is also related to a romantic love story.
The lady of the Darłowo castle was to bestow John of Maszewo with great reciprocating feeling.
 His Gothic tenement still stands today on the corner of the streets of Powstańców Warszawskich and Morska.
Supposedly, the ducal castle was connected with the house of the knight with a secret underground passage, which the knight used at night to sneak into his Lady's...
The historical novel based on the life of Princess Sophia, entitled "Beautiful Princess", was written by a writer Zbysław Gorecki living in Darłowo for many years.
In the Prussian times, the castle served partly as a warehouse and fell into ruin.
Only at the end of the thirties of the twentieth century, a regional museum was created there and it is operating.
Its founder and first curator was Karl Rosenow.

Today the castle serves as a Polish Museum.
The castle is built in gothic style on a base plan resembling a square; its tower is 24 metres (79 feet) high.
This is the only castle of such characteristic on the Polish seacoast.

The peculiarity of Darłowo museum is a two-headed calf, which was probably born in the village Janiewice, district of Sławno in 1919.
Another interesting feature of the castle is a cat mummy and a golden sculpture of a dove – a talisman of luck for King Eric and Cecilia.
Since the autumn of 2010, a statue of King Eric, showing the "king of exile" has been standing in the courtyard, funded by the Baltic Cooperative Bank in Darłowo.
Although documents directly relating to the construction of the castle in Darłowo have not been found yet, the results of archaeological and architectural and historical premises allow us to date back the creation of the castle to the second half of the fourteenth century. It was during the reign of the prince of the House of Griffins, Boguslaw V and Elizabeth, the daughter of King Casimir the Great. The prince purchased the island with a mill in 1352 from a rich burgher of Darłowo – Elizabeth von Behr – in order to build a fortress on it. Over the decades, a castle had grown on the island, which in its main outlines has survived to this day. The work of Boguslaw V was at that time so representative that so that as early as in 1372 a congress of the Pomeranian princes – brothers and cousins Boguslaw took place within its walls. The first sovereign, who modernised the defence system and extended the castle was Prince Eric the Pomeranian. It took place in the years 1449 to 1459, when after the loss of the throne of Scandinavia, the dethroned king returned to his legacy.
An old king was accompanied by a beautiful and young servant-maid Cecilia, who was the love of his life. Historians still argue about who this mysterious woman really was. Some of them maintain that in the last years of his life, reaching his seventies – she became his wife. One of the contemporary chronicles mention her as "the queen Cecilia".
Shrouded in mystery, the history of the great love of King Eric and Cecilia became an inspiration for artists. The poem "The Return of the Prince Eric" was created by a poet and writer of Koszalin – Czeslaw Zea, and an American journalist and writer Lucie Lehmann – Barclay has been penetrating the archives of Denmark, Sweden, Norway, Germany and the UK for several years in search of traces of Cecilia and Eric. The aim of the writer is to create a love novel of this unique pair based on historical facts.
The initial appearance of a medieval fortress of Darłowo was an inspiration to build a similar but larger Kronborg Castle by King Erik in Denmark, where after years, William Shakespeare placed the action of "Hamlet".
The castle of Darłowo is also associated with the figure of Eric Pomerania's granddaughter – Princess Sophia. Legend attributes to her, apparently contrary to the historical facts, cruelty, for which she lingers as the White Lady after her death, circling the castle. The character of Princess Sophia is also related to a romantic love story. The lady of the Darłowo castle was to bestow John of Maszewo with great reciprocating feeling.  His Gothic tenement still stands today on the corner of the streets of Powstańców Warszawskich and Morska. Supposedly, the ducal castle was connected with the house of the knight with a secret underground passage, which the knight used at night to sneak into his Lady's...
The historical novel based on the life of Princess Sophia, entitled "Beautiful Princess", was written by a writer Zbysław Gorecki living in Darłowo for many years. In the Prussian times, the castle served partly as a warehouse and fell into ruin. Only at the end of the thirties of the twentieth century, a regional museum was created there and it is operating. Its founder and first curator was Karl Rosenow.
Today the castle serves as a Polish Museum. The castle is built in gothic style on a base plan resembling a square; its tower is 24 metres (79 feet) high. This is the only castle of such characteristic on the Polish seacoast.
The peculiarity of Darłowo museum is a two-headed calf, which was probably born in the village Janiewice, district of Sławno in 1919. Another interesting feature of the castle is a cat mummy and a golden sculpture of a dove – a talisman of luck for King Eric and Cecilia. Since the autumn of 2010, a statue of King Eric, showing the "king of exile" has been standing in the courtyard, funded by the Baltic Cooperative Bank in Darłowo.
Darłowo