William Theodore de Rohan (1820-1891)

Admiral in the Italian Navy; died at Washington D.C.

Following a quarrel with his eldest brother in the 1840s William decided never to use the name Dahlgren again and chose the original (French) version of his mother's name, de Rohan, instead.

Parents (2)

Bernard Ulric Dahlgren

of Sansom Street, Philadelphia; Merchant & the Swedish and Norwegian Consul

1784-1824

Martha (Rowan) Dahlgren

Mrs Martha (Rowan) Dahlgren

1789-1838