According to the “Early Records of the City and County of Albany...” in a footnote on p. 145, “In 1700 Barent Albertse Bradt lived without the north gate, near the junction of Steuben street and Broadway, just west of the Main Guard. He had frequent warnings from the common council not to fence in certain grounds there belonging to the city.”

The Calendar of Council Minutes 1668-1783 (Google Books) lists for August 19, 1697:
Confirmatory patents granted to Abr’m Lakeman; and to Egbert Teunisse and Barent Albertse Bradt.

The Calendar of Council Minutes 1668-1783 (Google Books) lists for June 7, 1698:
Order for the trial of Barent Albertse Bradt accused of having killed an Onondaga sachem.

In the “Documentary History of the State of New York” (Google Books), in minutes from Albany 18th February 1689/90, is written
“Whereas there are severall houses near ye Citty which stand Extream Dangerous & ye Enemy being dayly Expected ye generality of ye Citizens desyre that they may be pulled doune It is ordered by ye mayr aldermen and commonality of ye Citty of Albany yt ye same be forthwith removed to witt ye house of Barent albertse Bratt ye house of Wm hoffmayer ye house of adriaen appel, ye house of ye widow of Cornelise vanderholve, and to ye end that ye same may be effected with ye Least Dammage to ye owners these following p’sones to witt Pr Winne Pr Bogardus Wm Claese Groesbeek harme Gansevoort Dirk Bensing & Jan Cornelise Vyselaer are appointed and authorized to agree with ye owners Else to apprise the same, wch gd apprizemt is to be paid by the Publike & to order yt ye same may be broke off in the most orderly way with all speed; ye sd 6 Persones are also authorized to Cause all ye fences & trees standing ear the Toune to be Removed & to warn ye owners to doe it with all Expedition else to order it to be done, in doeing whereof this shall be ye sufficient warrant; ye sd men are authorized to give there Report whether any oyr houses ought to be Removed in this dangerous time that order may be taken therein actum in albany ye 18th day of February 1689/90. Signd Pr Schuyler mayr J. Bleeker Joh: wendel albert Ryckman Claes Ripse van dam Liv: van Shaik Jochim Staets Gerrit Ryerse Reynier Barentse.

In the “Documentary History of the State of New York” (Google Books), in minutes from Albany “ye 21th february 1689/90” is written
“Pr Winne Pr Bogardus Harme gansevoort Dirk Bensing & Jan Cornelise Vyslaer who were authorized to give there Report whether any oyr houses ought to be Removed from ye Toune walls, doe say yt ye 4 houses of Barent albertse Brat Adrien appel Wm hoffmayer & ye wdw of Cornlise vanderholve be Removed ye oyr houses may stand till further order, but yt all fences Trees and oyr timber must be Removed 60 paces without ye City stockadoes, & all oyr things wh might hinder ye view of ye enemy . . . Orderd yt ye houses of Barent albertse Bradt Wm hoffmayer adriaen appel & ye widw of Cornelise vanderholve be pulled doune by ye Companies of Capt Bleeker & Capt Wendel & set up again within ye Citty on such lotts as shall be appointed for ye same & yt ye quarter of a Compe doe work at a time & so by Turns . . . Ordered ye first division of Capt Bleekers Compe goe to worke & Pull doune ye sd 4 houses on Munday morning standing nerest ye gates, beginninat the house of Barent albertse Bradt which house together with ye house of Wm hoffmayer and adriaen appel is to be sett up again by ye Inhabitants in some Convenient Place within ye Citty & yt by every division both in Pulling doune ye houses & setting them up there be at least on Carpenter or Two, The house of ye widw of Cornelise vanderholve being old and Decayed is only to be pulled doune. “

In the “Documentary History of the State of New York” (Google Books), “ att a Convention &c. Sept 17th 1689,” discussing the need to procure men for defense and outlining a general tax, lists “Barent Bratt” as one of “the farmers belonging to Capt Marten Gerritse Compe,” and assesses him 0 pounds, which is unusual.

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NY State Museum carries the following biography at http://www.nysm.nysed.gov/albany/bios/b/baalbradt4182.html
Barent Albertse Bradt
by
Stefan Bielinski

Barent Albertse Bradt was born in Amsterdam, Holland and baptized in the Lutheran church there in October 1634. He was the first son born to Albert Andriesse and Anna Barents. He came to America with his parents in 1637.

Growing up on his father's Rensselaerswyck farm, he learned the mechanics of farming, milling, and trading. Those skills enabled him to represent his father and then establish himself in the new village of Beverwyck. About that time, he married Susanna Dircks - the mother of his eight children. The marriage suffered from Barent's intemperate behavior which led to several court appearances on battery and assault charges!

Barent derived his income from sawing - probably at his father's Normanskill mill. At the same time, he sought to take part in the fur trade. He sought acceptance in now Albany by joining the Dutch church. However, he found trading difficult as his family was fined several times for illegal trading.

Instead, Barent Albertse found success in real estate - acquiring several parcels and using boards cut at the Bradt mill to build houses in Albany and outside the stockade. By 1682, he was living outside the north gate. In 1684, his Albany taxes were in arrears. Fives years later, he was listed among the farmers employed by Marte Gerritse but was assessed no money for defense. Raising a large family, he also was the guardian of a number of related children and a frequent baptism sponsor for family members and neighbors.

By the 1690s, he had become an Albany mainstay. He served on juries and as firemaster and roadmaster. In 1697, Barent, Susanna, and one child were living in his Market Street house just outside the north gate. Assessment rolls for ensuing years place him among the moderately wealthy Albany householders.

He also acquired lots at Halfmoon and Schaghticoke. Barent Albertse Bradt disappeared from Albany rolls after 1712. His four sons further established the Bradt name in Albany and its hinterland.