Ottoman Kosovo was created in 1455.

No. Kosovo was part of Serbia and, before that, the Ottoman Empire. It was never colonized as that term is commonly understood.

The Ottoman Sultans extended their empire beyond the Middle East by occupying land in Europe. In 1389, the Ottoman victory at Kosovo paved the way for Ottoman expansion into Europe. The Ottoman army was the largest army in Europe.

Giancarlo Salvoldi has written:

'Kosovo' -- subject(s): History, Kosovo (Serbia) Civil War, 1998-1999, Nonviolence, Peace, Kosovo War, 1998-1999

They lived in the city of Üsküp, Kosovo Vilayet, Ottoman Empire (Albania) today known as Skopje, Macedonia.