After being exiled, Theodore is next attested upon his arrival to England in 1597, there to kill a man named Alessandro Antelminelli, wanted by the authorities of the Republic of Lucca.
At this point, Theodore had established himself as an assassin, and seems to have had an impressive reputation.
Ultimately, Theodore failed to kill Antelminelli, and perhaps because he wanted a safer and more stable profession (he was around 40 years old), he stayed in England for the rest of his life, first entering into the service of Henry Clinton, the Earl of Lincoln.
Clinton was almost sixty years old and one of the most brutal, feared and hated feudal lords in Britain.
Clinton is frequently described as waging war on his neighbors and is often credited with rioting, abduction, arson, sabotage, extortion and perjury.
At one point, Clinton even expanded his castle walls into the nearby churchyard.

While in Clinton's service, Theodore met his wife, Mary Balls, with whom he had six, possibly seven, children.
When Clinton died in 1616, the fate of the family is unknown, but they were no longer present at the Earl's seat in Tattershall.
Three years later, Theodore, Mary and some of the children lived in Plymouth, where Theodore in 1682 attempted to enter into the service of George Villiers, the Duke of Buckingham, who was almost as hated in England as the Earl of Lincoln had been.
Villiers was assassinated soon thereafter, however, and Theodore was instead invited to stay with Sir Nicholas Lower, a rich Cornish squire, at his home in Landulph, Cornwall, called Clifton Hall.
Clifton Hall was divided as to give place to two families, and Theodore was joined by his wife and some of his children.

When Theodore died in 1636, the family seemed to be well-off.
He was survived by five of his children; the two daughters Dorothy and Mary and the three sons Theodore Junior, John and Ferdinand.
Of the two daughters, only Dorothy married and she probably never had children.
The fates of the three brothers were caught up in the English Civil War of 1642–1651.
Theodore Junior supported the Roundheads, who meant to end absolute monarchy in Britain, and did not survive the war, probably dying of camp fever during the early stages of the long Siege of Oxford.
He was buried in Westminster Abbey, where his grave still remains.
The other two brothers were Cavaliers, or royalists, and fled the country during the war.

Both Ferdinand and John were in Barbados, among the first colonists on the island, in 1644.
John disappears from history soon thereafter, but Ferdinand stayed on the island for the rest of his life, becoming known there as the "Greek prince from Cornwall".
He quickly became one of the elite on the island, cultivating cotton or sugar and possibly pineapples and was highly influential in the affairs of the local St. John's Parish Church.
He constructed a great mansion called Clifton Hall, named after the family's home in Cornwall, which stands on the island to this day, recognized as one of the oldest and grandest great houses in Barbados.

Ferdinand had only one known child, his son Theodore, who soon left Barbados, returning to England and becoming a privateer.
He lived in Stepney, London and died at sea near A Coruña, Spain in 1693.
The only surviving child of Theodore, and the last known member of the family overall, was Theodore's posthumous daughter Godscall Paleologue, born on 12 January 1694.
There are no sources on Godscall beyond her baptismal records and her subsequent fate is unknown.
After being exiled, Theodore is next attested upon his arrival to England in 1597, there to kill a man named Alessandro Antelminelli, wanted by the authorities of the Republic of Lucca. At this point, Theodore had established himself as an assassin, and seems to have had an impressive reputation. Ultimately, Theodore failed to kill Antelminelli, and perhaps because he wanted a safer and more stable profession (he was around 40 years old), he stayed in England for the rest of his life, first entering into the service of Henry Clinton, the Earl of Lincoln. Clinton was almost sixty years old and one of the most brutal, feared and hated feudal lords in Britain. Clinton is frequently described as waging war on his neighbors and is often credited with rioting, abduction, arson, sabotage, extortion and perjury. At one point, Clinton even expanded his castle walls into the nearby churchyard.
While in Clinton's service, Theodore met his wife, Mary Balls, with whom he had six, possibly seven, children. When Clinton died in 1616, the fate of the family is unknown, but they were no longer present at the Earl's seat in Tattershall. Three years later, Theodore, Mary and some of the children lived in Plymouth, where Theodore in 1682 attempted to enter into the service of George Villiers, the Duke of Buckingham, who was almost as hated in England as the Earl of Lincoln had been. Villiers was assassinated soon thereafter, however, and Theodore was instead invited to stay with Sir Nicholas Lower, a rich Cornish squire, at his home in Landulph, Cornwall, called Clifton Hall. Clifton Hall was divided as to give place to two families, and Theodore was joined by his wife and some of his children.
When Theodore died in 1636, the family seemed to be well-off. He was survived by five of his children; the two daughters Dorothy and Mary and the three sons Theodore Junior, John and Ferdinand. Of the two daughters, only Dorothy married and she probably never had children. The fates of the three brothers were caught up in the English Civil War of 1642–1651. Theodore Junior supported the Roundheads, who meant to end absolute monarchy in Britain, and did not survive the war, probably dying of camp fever during the early stages of the long Siege of Oxford. He was buried in Westminster Abbey, where his grave still remains. The other two brothers were Cavaliers, or royalists, and fled the country during the war.
Both Ferdinand and John were in Barbados, among the first colonists on the island, in 1644. John disappears from history soon thereafter, but Ferdinand stayed on the island for the rest of his life, becoming known there as the "Greek prince from Cornwall". He quickly became one of the elite on the island, cultivating cotton or sugar and possibly pineapples and was highly influential in the affairs of the local St. John's Parish Church. He constructed a great mansion called Clifton Hall, named after the family's home in Cornwall, which stands on the island to this day, recognized as one of the oldest and grandest great houses in Barbados.
Ferdinand had only one known child, his son Theodore, who soon left Barbados, returning to England and becoming a privateer. He lived in Stepney, London and died at sea near A Coruña, Spain in 1693. The only surviving child of Theodore, and the last known member of the family overall, was Theodore's posthumous daughter Godscall Paleologue, born on 12 January 1694. There are no sources on Godscall beyond her baptismal records and her subsequent fate is unknown.
Paleologus of Pesaro