Janssen de Heeze Calvert descendants

Janssen family flees Holland after hanging; settling into British aristocracy and nobility.

1. Nicasius Janssen, Baron de Heeze (c1522 - July 9, 1572); a Franciscan was one of the 19 Martyrs of Gorkum, Netherlands. They were hanged by Dutch pirates fighting for independance from Spain.

Saint Nicasius Janssen - the account of his execution .

2. Theodore Janssen de Heeze, the youngest son of the Baron, took refuge in Owemoigne, France. From there, the family moved to England.

3. Abraham Janssen in 1657 married Henriette Manigault in Angouleme, Charente, France. Henriette's parents were Isaac Manigault ( -1649), Sieur de Limouillet, and Suzanne Bardet. Her grandparents were Francois Manigault ( -1608), Sieur de Limouillet and Jeanne Chollet. Francois Manigault was a Member of Parliament under King Henry IV (Henry of Navarre) in 1602. (thanks to Edward Manigault)

4. Sir Theodore Janssen (1658 - 1748) married Williamsa Henley in 1697. Knighted by William III and created a first baronet by Queen Anne (Janssen of Wimbledon, Surrey).
From 1711 to 1721 Theodore was a director of the South-Sea Company. The directors of the company were charged with breach of public trust, manipulating the value of stocks and insider trading. Theodore was ordered out of the House of Commons. His assets were seized. He was left with 50,000 pounds out of his 243,000 pounds; to start a new life.
Sir Theodore Janssen and his sons; painting by William Hogarth.

Account of the The South-Sea Bubble, Chapter 2 "Memoirs of Extraordinary Popular Delusions and the Madness of Crowds" author Charles Mackay.

5.1 Abraham Janssen (1699 - 1765) MP for Dorchester, Great Britain (1720 -1722).
5.2 Henry Janssen (1700 - 1766)
5.3 Stephen, Theodore Janssen (c1701 - 1777) In 1750 married Catherine Soulegre, daughter of Col. Soulegre.
      Stephen was one of the most philanthropic Lord Mayors of London (1747 -1754). He was known for prison regulation and reform of treatment.
      Stephen dealt with the executions of a homosexual prostitute and a rioter.
      5.3.1 Henrietta Janssen (1752 - 1849) married Lorenzo Moore (1744 - 1798).

      Janssen Moore portraits
5.8 Mary Janssen (1715 - 1770) married 1730, Charles Calvert (1699 - 1751).
      5^th Lord Baltimore, colonial Governor of Maryland.
           Charles' oil on canvas ca. 1732 by Herman van der Mijn (1684-1742).

      iFamily web pages of Mary Janssen and Charles Calvert ancestors and descendants.

      Charles Calvert had an illegitimate son; Benedict, Swingate Calvert, with Melusina von der Schulenberg.
      Melusina was the daughter of King George I of England and his mistress, Ermengarde de Schulenberg.
       Mulusina von der Schulenberg

          Melusine    Benedict       Eleanor          John
      Benedict, Swingate Calvert (1730 - 1788) in 1748 married Elizabeth Calvert (1729 - 1798).
      Of their 13 children; Eleanor Calvert (1757 - 1811) in 1774 married John Park Custis (1754 - 1781) son of

      Daniel Park Custis (1712 - 1757) and Martha Dandridge (1731 - 1802). Martha in 1759 married
      George Washington; president of USA.

      John and Eleanor's son; George Washington Parke Custis (1781 - 1857) married in 1804 Mary Lee Fitzhugh (1788 -1853).
      Their daughter, Mary Anna Custis (1808 - 1873) married Robert E. Lee.

5.8.2 Frederick Calvert (1731 - 1771) 6^th Lord of Baltimore married in 1753 Diane Egerton. m.2 Hester Whalen. Their daughter
Frances Mary Harford (1759 - 1822) m. William Frederick Wyndham
5.8.5 Caroline Calvert (c1745 - ) married in 1763 Robert Eden (1741 - 1784); last royal governor of Maryland.

Famous Janssen artists, astronomer, economist, inventor, saints, and scientist.