Limerick, Ireland; 1659 d. Frankfurt am Main 1731, second Earl of Browne in the Jacobite Peerage) and his wife Annabella Fitzgerald, a daughter of the House of Desmond.

The brothers enjoyed a lengthy, close friendship with John Churchill, 1st Duke of Marlborough, who was primarily responsible for their establishment in the Imperial Service of Austria.

His careful employment of such resources as he possessed materially hindered the king in his conquest and gave time for Austria to collect a field army (see War of the Austrian Succession).

His vehement opposition to all half-hearted measures brought him frequently into conflict with his superiors, but contributed materially to the unusual energy displayed by the Austrian armies in 1742 and 1743.

At the end of the war, von Browne was engaged in the negotiations on troop withdrawals from Italy, which led to the convention of Nice (21 January 1749).

The field marshal never spared himself, bivouacking in the snow with his men, and Carlyle records that private soldiers made rough shelters over him as he slept.

He actually reached the Elbe at Schandau, but as the Saxons were unable to break out, von Browne retired, having succeeded, however, in delaying the development of Frederick's operations for a whole campaign.

In the campaign of 1757, he voluntarily served under Prince Charles Alexander of Lorraine who was made commander-in-chief, and on 6 May in that year, while leading a bayonet charge at the Battle of Prague, von Browne, like Schwerin on the same day, met his death.