When Kiliaen came of age, he travelled to Albany, and received naturalization papers from the English colonial government.
[2] Upon the death of his uncle, Jeremias Van Rensselaer, in 1674, he became patroon of Rensselaerswyck.
Young Kiliaen's aunt, the widow of Jeremias, Maria Van Rensselaer, and her brother, Stephanus Van Cortlandt served in an advisory capacity.
[3] While he was Patroon, the patroonship changed to an English lordship, and so was the first Lord of Rensselaerwyck.
[5] Kiliaen died without issue at Watervliet, Albany county, about February 22, 1687.