Matthew and Catherine had four children, two very short-lived:
1. Henry baptised at St Peter Cornhill 1675/6 Jan 28 and buried there Mch 2 following. The Burial record calls him 'son of Henry' - an obvious clerical error.
2. Catherine baptised 1677 Oct 23/24 at both St Peter and the Dutch Church at Austin Friars. She pre-deceased her father, having married Hugh ST QUINTIN (1671-1712/23); their elder son William succeeded as 4th Baronet ST QUINTIN of Harpham, Yorks, and had issue. The name CHITTY was given as a last baptismal name to several of their descendants, and, though the male line and the baronetcy have long been extinct, descendants who had assumed the name of ST QUINTIN continued until at least 1913.
3. Agneta baptised 1681 Aug 25 at Austin Friars, married Theodore HUYGENS who was living in 1712; she died between 1759 Jun 22 and 1760 Feb 6 as 'Lady Agneta CHITTY widow of Theodorus HUYGHENS, Magistrate and Council of Amsterdam', leaving effects, stocks and credits in Great Britain. One of the executors was Worshipful Wilelm HUYGHENS Lord of Honroop, High Sheriff of Amsterdam. The Will was proved in the P.C.C.
4. Elizabeth baptised 1684 Jun 22 at Austin Friars and buried 1685 Sep 1 in the North Aisle of St Peter Cornhill.
Matthew married secondly Elizabeth Ten CROOTENHUYS of Amsterdam, formerly De DIEN, a widow with two children, Lodowick Ten CROOTENHUYS who died 1724 Jun 1, unmarried, during his mother's lifetime, and Jacoba Elisabeth, wife of Theodor BOONDEMAHER. Theodor was living in 1712 and Jacoba in 1724, and they had a son Jacob.
In his Will (proved in the P.C.C), Matthew names his daughter Agneta, his grandsons William and Matthew ST QUINTIN, and also his sons-in-law Hugh ST QUINTIN and Theodore HUYGENS who were to be executors and to allow Matthew's widow to live rent free for one year in his dwelling-house - his country house and residuary estate being for the use of his executors. Joost de SMETH was named executor with them.
We now return to Matthew's uncle, Abraham CHITTY II.