In 1593–99, Brahe and Kurt Aslaksen went on a grand tour in Europe, studying at the universities in Rostock (1593), Herborn (from spring of 1594), Heidelberg, Basel, Geneve and Orleans (1599).

[1] During the Kalmar War, Brahe served as cornet in the heavy cavalry.

Together with people such as Niels Trolle and Frederik Parsberg, he belonged to a narrow circle of wealthy noblemen who dominated the Danish lending market after the access loans from Holstein and the "king's own coffin" stopped after the Thirty Years' War.

His third wife was Anne Bild (buried 18 June 1656 in Køge), a daughter of Niels B.

Brahe died on 5 July 1651 and was buried in St. Peter's Church in Næstved.

His estates passed to his only grandson, Otto Christopher Ulfeldt, who died just 17 years old in 1663.