Between 1686 and 1689, Milborne worked as a clerk and bookkeeper for a leading New York merchant overseeing business operations from
Rotterdam, where he was associated with New Yorkers who were later prominent in the rebellion, including Benjamin Blagge (his brother-in-law), Jacob Mauritz (half-brother of mayor
Cornelis Steenwijck), and Joost Stol (likely a son of author Barent Joosten Stol). Leisler and Milborne instituted a highly autocratic regime under which property was confiscated, mail was opened, homes searched and people were jailed without warrant or trial, and anyone who criticized them was accused of being
secretly Catholic or "popishly affected." Wanting to strike a blow at Catholic France, they mounted an unsuccessful invasion of Canada. It was a strange regime in that its proclaimed purposes were (a) to prevent a Catholic takeover, yet there was no real threat of this given how few Catholics were in New York at the time, and (b) to hold power for the new Protestant king and queen of England,
William of Orange and his wife Mary, pending their consolidation of power and sending of instructions and representatives to the colony, yet when the new king and queen sent troops and a new governor, Leisler and Milborne were initially resistant to accepting them.
Execution When a new governor
Henry Sloughter arrived with the resources to put down the rebellion, Leisler and Milborne surrendered to him, but not before shots were fired and lives were lost in a standoff at the fort. They were arrested and tried for murder and treason by a somewhat biased bench. Originally sentenced to be
hanged, drawn and quartered and their estates forfeited to the crown, the two men were in the event simply hanged (hanged, but then cut down prior to death and then beheaded in front of a large crowd). ==Personal life==