"He commanded a troop in the Berkshire-trained bands and was appointed governor of Aylesbury on 22 May 1644. During the winter of 1645–6 he acted as commander-in-chief, under Colonel Dalbier, of the infantry at the siege of Donnington Castle." (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"There is evidence that they were a couple from as early as 1649, when they lavishly entertained visiting dignitaries and kept liveried servants together. They may well have been a couple from Marten's earliest time in London in 1640. If so, this was a relationship that remained constant for forty years. It was, however, adulterous, and Marten was quite open about it. Mary referred to herself, and was referred to by others, as Mary Marten...The couple had three daughters: Peggy, Sarah, and Henrietta" (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten also had radical views about religion. He was accused of being an atheist, but he did make a statement which implied that he did not question whether God existed but that his viewpoint was of radical scepticism because mankind did not possess the faculties to know what or who God was... Marten's scepticism meant it was incumbent on mankind to allow total toleration of all religious viewpoints. People did not have the knowledge, or the authority that knowledge would have conveyed, to pronounce one opinion on religion more right than another. This was a viewpoint that Marten carried through his political career, arguing for liberty even for Catholics...Marten also opposed the conquest of Ireland on grounds that the English could not seek religious freedom for themselves and then impose a religious settlement on others." (Barber 2008). Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten stated in the Commons on 16 August 1643 that 'it were better one family be destroyed than many' (Mercurius Aulicus, 19 August 1643). On being challenged to reveal to whom he referred he added without hesitation that he meant the king and his family. He was immediately imprisoned in the Tower of London and barred from the Commons" (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten's political views remained unshakeable throughout his lifetime. He was always committed to a republican polity and was infamous in the early 1640s as the only person prepared to admit to such a view." (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"He commanded a troop in the Berkshire-trained bands and was appointed governor of Aylesbury on 22 May 1644. During the winter of 1645–6 he acted as commander-in-chief, under Colonel Dalbier, of the infantry at the siege of Donnington Castle." (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"There is evidence that they were a couple from as early as 1649, when they lavishly entertained visiting dignitaries and kept liveried servants together. They may well have been a couple from Marten's earliest time in London in 1640. If so, this was a relationship that remained constant for forty years. It was, however, adulterous, and Marten was quite open about it. Mary referred to herself, and was referred to by others, as Mary Marten...The couple had three daughters: Peggy, Sarah, and Henrietta" (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten also had radical views about religion. He was accused of being an atheist, but he did make a statement which implied that he did not question whether God existed but that his viewpoint was of radical scepticism because mankind did not possess the faculties to know what or who God was... Marten's scepticism meant it was incumbent on mankind to allow total toleration of all religious viewpoints. People did not have the knowledge, or the authority that knowledge would have conveyed, to pronounce one opinion on religion more right than another. This was a viewpoint that Marten carried through his political career, arguing for liberty even for Catholics...Marten also opposed the conquest of Ireland on grounds that the English could not seek religious freedom for themselves and then impose a religious settlement on others." (Barber 2008). Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten stated in the Commons on 16 August 1643 that 'it were better one family be destroyed than many' (Mercurius Aulicus, 19 August 1643). On being challenged to reveal to whom he referred he added without hesitation that he meant the king and his family. He was immediately imprisoned in the Tower of London and barred from the Commons" (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)
"Marten's political views remained unshakeable throughout his lifetime. He was always committed to a republican polity and was infamous in the early 1640s as the only person prepared to admit to such a view." (Barber 2008) Barber, Sarah (2008) [September 2004]. "Marten, Henry (1601/2–1680)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/18168. (Subscription or UK public library membership required.)