Encyclopaedia Britannica, 11th Edition, "Kelly, Edward" to "Kite" by Various

1622. Sir Robert was a member of all the parliaments between 1603 and

his death, but he came more into prominence owing to his alleged connexion with the death of Sir Thomas Overbury. A man of some scientific knowledge, he had been in the habit of supplying powders to Robert Carr, earl of Somerset, but it is not certain that the fatal powder came from the hands of Killigrew. He died early in 1633, leaving five sons, three of whom attained some reputation (see below). KILLIGREW, THOMAS (1612-1683), English dramatist and wit, son of Sir Robert Killigrew, was born in Lothbury, London, on the 7th of February