Anna Margaretha van Aerssen van Sommelsdijk

Anna Margaretha van Aerssen van Sommelsdijk

Born 1713
Died 1803

Alias: 

Baroness Duyn
Madame Maasdam
Vrouwe van Sommel

Biography: 

Daughter of Francis van Aerssen van Sommelsdyck (1660-1740), Admiral, a first cousin of Boswell's grandfather, James, and Maria van Aerssen van Wernhout. Sister of Heer van Sommelsdyck. Married (1730) to Philippe de Jouccourt (b. ca. 1709). Married (1742) to Aarnoud Joost van der Duyn.

Life with Boswell: 

Boswell met her on December 28, 1763, possibly at Baron Sporck's in The Hague. In a memo he wrote that Madame Maasdam told you how la Comtesse was taken to Utrecht, as there were strange suspicions. "She is a little galante, but do not whisper it".1