marriage was to Margaret Charleton, daughter of Thomas Charleton, in 1712. Calvert may also have had an illegitimate son, Charles Calvert Lazenby, born in England in 1688, who would grow up to have a career in the army and later become Governor of Maryland in his own right. Captain Calvert's parents have never been positively identified but it has long been assumed that his father was the 3rd Baron Baltimore. This assumption appears to be supported in scholar Anne Yentsch's book by the fact that Captain Calvert was granted lands by the 3rd Baron Baltimore, which he then exchanged for a military commission. Likewise, the 5th Baron Baltimore, son of Benedict Leonard Calvert Sr., placed his older cousin as governor of the Maryland Province after he assumed the title at the young age of 15. His mother's identity is also unknown but, judging by the Calvert family papers, she appears to have been the Countess Henrietta, also known as "Mother Calvert", who died circa 1728. However, Douglas Richardson's Plantagenet Ancestry: A Study In Colonial And Medieval Families, 2nd Edition, p. 467, does not list Lazenby as an illegitimate child of the 3rd Baron; nor any others. Calvert's residence in England was his family's estate at Woodcote Park in Surrey. Around 1712, Woodcote was described by Celia Fiennes: Lord Baltimores in Woodcut Green encompassed with a wall at the entrance, a breast wall with pallisadoes, large courts one within the other, and a back way to the stables where there is a pretty horse pond; the house is old but low, though large run over much ground; as I drove by the side saw broad chimneys on the end and at due distance on the side on both ends the sides of a court which terminated in a building on which there is a lead with railes and barristers. Relations with his son Benedict Charles remained a Roman Catholic, despite the adverse political disadvantages. But his eldest son Benedict Calvert, 4th Baron Baltimore (1679–1715), did not maintain this allegiance. Benedict correctly calculated that the chief impediment to the restoration of his family's title to Maryland was the question of religion. Accordingly, he abandoned Rome and converted to Anglicanism, deciding to "embrace the protestant religion", and gambling that this move would win back his family's lost fortune in the New World. Such a bold move would however come at a high price.