 Complete the following phrase:  Sybourg was born Charles de Sibourg, a gentleman of French extraction and a Protestant, and was said to have been an illegitimate son of Meinhardt, Duke of Schomberg. He entered the English army soon after the Revolution of 1688, and proved a brave and meritorious officer. On 1 May 1694 he was promoted to the rank of major in Schombergs 8th Horse later 7th Dragoon Guards, and on 1 March 1703 was appointed to the lieutet-colonelcy of the regiment, from which time he discontinued the de in his name, which was afterwards spelt Sybourg. He was granted the brevet rank as a colonel of Horse on 1 January 1704. He commanded the 8th Horse at the battles of Schellenberg, Blenheim and 