Auguste-César-Victor né Paris le 16.ii.1783, prince de Broglie, tué Austerlitz le 02.xii.1805 ("périra sous les balles françaises à Austerlitz"). In Russian service as Avgust Perovich de Broglio-Revel:
10 Dec 1796 ppor gv art bn>ppor lgpr
19 Mar 1806 lgpr ubit pod Austerlitsom [listed as killed at Austerlitz]
Charles-François-Ladislas né Paris le 18.x.1788, prince de Broglie, tué Kulm le 29.viii.1813. In Russian service as Karl-Frantsik-Vladislav de Broglio-Revel:
May 1807 1kk>pra lgs
May 1809 pra>ppor lgs
May 1811 ppor>por lgs
May(?) 1813 por lgs ubit [listed as killed. NB month must be incorrect]
gv art bn = Lieb Guard Artillery Batallion
1kk = 1st Kadet Korps
lgpr = Lieb Guard Preobrazhensky Regiment
lgs = Lieb Guard Semenovsky Regiment
pra = praporshchik (ensign)
ppor = podporuchik (2nd lieutenant)
por = poruchik (lieutenant)
The above information is from Mark Conrad's excellent Data Base of Russian Officers.
"... became pages at the [Russian} court and later fought as officers of the [Russian} guard against Napoleon. The eldest of them fell at Austerlitz and the youngest perished at Kulm in 1813 ...."
Mon Repos, Finnland: Marble Obelisk erected by Paul von Nikolay (d 1866) to his brothers-in-law, the Ducs de Broglie, who fell at Austerlitz and Kulm.
Another brother Octave, ne Paris 11.xi.1785, morte Saint-Georges-d'Aulnay 31.viii.1865 also served in Russian service (known as Al'fons Gavriil-Oktav de Broglio-Revel) reaching the rank of colonel in 1816.