Janssen baronets

The Janssen Baronetcy, of Wimbledon in the County of Surrey, was a title in the Baronetage of Great Britain. It was created on 11 March 1715 for the Dutch-born financier Theodore Janssen, who also represented Yarmouth in the House of Commons. The second Baronet sat as Member of Parliament for Dorchester while the fourth and last Baronet was Member of Parliament for the City of London and a Lord Mayor of London. The title became extinct on the latter's death in 1777.

The last baronet's daughter Henrietta Janssen (died 29 July 1840 Twickenham, aged 87) married Lorenzo Moore, MP for Dungannon in Ireland, and had issue including General Sir Lorenzo Moore, whose daughter Zakyntha married into the Boyle family in 1849.