Arap Mosque was originally a Roman Catholic church erected in 1325 by the friars of the Dominican Order, near or above an earlier chapel dedicated to Saint Paul in 1233. Although the structure was altered during the Ottoman period, it is the only example of medieval religious Gothic architecture remaining in Istanbul.
The church was converted into a mosque by the Ottomans between 1475 and 1478, during the reign of Sultan Mehmed II, and became known as the Galata Mosque. It was later given by Sultan Bayezid II to Muslim refugees from Al-Andalus who escaped the Spanish Inquisition in 1492 and settled in the Galata neighborhood of Istanbul.
Erected according to the model of the Italian mendicant order churches of that period, the church had a three-nave rectangular base, with squared-off eastern end and a square sanctuary which is covered by ribbed groin vaults.
The Gothic-style portal, lancet windows and the prominent bell tower (which has been transformed into a minaret by the addition of a conical roof) distinguished the building from the Byzantine churches in the city. On the other side, the technique used for the brickwork was local, and alternated small courses of bricks and ashlar.
Today, Arap Camii is the largest mosque on the Galata side of the Golden Horn. It is one of the most interesting mosques in the city due to its early Italian Gothic architectural style and church belfry, which has practically remained unaltered even after being converted into a minaret.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.