Christian Ditlev Frederik Reventlow was born on March 11, 1748 in Christianssæde, Denmark into the Reventlow family, an ancient Danish-German family of high nobility.
He was the son of Privy Councillor Christian Ditlev Reventlow (1710–1775) by his first wife, baroness Johanne Sophie Frederikke von Bothmer. He was the brother of Johan Ludvig Reventlow .
After being educated at the academy of Soro and at Leipzig, Reventlow, in company with his younger brother Johan Ludwig and the distinguished Saxon economist Carl Wendt (1731 - 1815), the best of cicerones on such a tour, travelled through Germany, Switzerland, France and England, to examine the social, economical and agricultural conditions of civilized Europe. A visit to Sweden and Norway to study mining and metallurgy completed the curriculum, and when Reventlow in the course of 1770 returned to Denmark he was an authority on all the economic questions of the day.
In 1774 he held a high position in the Kammerkollegiet, or board of trade, two years later he entered the Department of Mines, and in 1781 he was a member of the Overskaltedirectionen, or chief taxing board. Reventlow overflowed with progressive ideas, especially as regards agriculture, and he devoted himself, heart and soul, to the improvement of his property and the amelioration of his serfs. Fortunately, the ambition to play a useful part in a wider field of activity than he could find in the country ultimately prevailed. His time came when the ultra-conservative ministry of Hoegh Guldberg was dismissed (April 14th, 1784) and Andreas Bernstorff, the statesman for whom Reventlow had the highest admiration, returned to power. Reventlow was an excellently trained specialist in many departments, and was always firm and confident in those subjects which he had made his own. The condition of the peasantry especially interested him. He was convinced that free labour would be far more profitable to the land, and that the peasant himself would be. better if released from his thraldom. His favourite field of labour was thrown open to him when, on the 6th of August 1784, he was placed at the head of the Rente- kammeret, which took cognisance of everything relating to agriculture. His first step was to appoint a small agricultural commission to better the condition of the crown serfs, and amongst other things enable them to turn their leaseholds into freeholds. Observing that the Crown Prince Frederick was also favourably disposed towards the amelioration of the peasantry, Reventlow induced him, in July 1786, to appoint a grand commission to take the condition of all the peasantry in the kingdom into immediate consideration. This celebrated agricultural commission continued its labours for many years, and introduced a whole series of reforms of the highest importance. Thus the ordinance of 8th June 1787 modified the existing leaseholds, greatly to the advantage of the peasantry; the ordinance of 20th June 1788 abolished villenage and completely transformed the much-abused hoveri system whereby the feudal tenant was bound to cultivate his lord's land as well as his own; and the ordinance of 6th December 1799, which did away with hoveri altogether. Reventlow was also instrumental in starting the public credit banks, for enabling small cultivators to borrow money on favourable terms. In conjunction with his friend, Heinrich Ernst Schim- melmann (1747 - 1831), he also procured the passing of the , ordinances permitting free trade between Denmark and Norway, the free importation of corn from abroad, and the abolition of the mischievous monopoly of the Iceland trade. But the financial distress of Denmark, the jealousy of the duchies, the ruinous political complications of the Napoleonic period, and, above all, the Crown Prince Frederick's growing jealousy of his official advisers, which led him to rule, or rather misrule, for years without the co-operation of his Council of State-all these calamities were at last too much even for Reventlow. On 7th December 1813 he received his dismissal and retired to his estates, where, after working cheerfully among his peasantry to the last.
He was deeply religious.
Overskaltedirectionen
He was a man of strong and warm feelings.
In 1774 he married Frederica Charlotte von Beulwitz, who bore him thirteen children.
