Freemasons and the Knights Templar have been theorized to be closely related.
Many have theorized taht Freemasons are actually a product of the Knights Templar.
How do you think will this work out in the AC universe? and in AC 3
Heres a list of Revoluationary War Freemasons
George Washington , Fredericksburg Lodge No. 4; Alexandria Lodge No. 22, VA
Benedict Arnold , Hiram Lodge No. 1, New Haven, CT (expelled)
John Blair , Williamsburg Lodge No. 6; Past Grand Master of Virginia
Chief Joseph Brant , Hiram's Cliftonian Lodge No. 47, Barton Lodge No. 6, Hamilton, ON
Benjamin Franklin , February 1731, St. John's Lodge of Philadelphia; Lodge at Tun Tavern, Philadelphia, PA; WM, Loge Les Neuf Sœurs , Paris; Past Grand Master of Pennsylvania
John Hancock , Massachusetts Lodge No. 277, QC; St. Andrew's Lodge, Boston, MA
Brigadier General Nicholas Herkimer , St. Patrick's Lodge, Johnstown, NY
William Hooper , Hanover Lodge, Masonborough, NC
John Paul Jones , St. Bernards Lodge No. 122, Kirkudbright, Scotland
Rufus King, St John's Lodge, Newburyport, MA
General Rufus Putnam , Past Grand Master of Ohio
Paul Revere , St. Andrew's Lodge, Boston, MA; Grand Master of Massachusetts 1794-97.
Baron von Steuben , Trinity Lodge No. 10, New York, NY
Richard Stockton , charter Master, St. John's Lodge, Princeton, NJ
George Walton , Solomon's Lodge No. 1, Savannah, GA
Joseph Warren , St. Andrew's Lodge, Boston, MA; Past Provincial Grand Master of Massachusetts
William Whipple , St. John's Lodge, Portsmouth, NH
Since indications are that the Templars are on the side of the British, I would say that there is such no link in the AC universe (whether there is in this one or not)..