Claes Sieverse of Denmark, b. Abt 1672 (Severson) (my family) married Annatje Van Patten (b. Abt 1676) 26 Jul 1699 in Coxsackie, Greene County, New York, who was the daughter of Claes Frederickse Van Patten (Van Patten).Claes Van Petten (b. 2 Jun 1641) was from Petten, NoHo, Holland, b. 30 May 1641, married Affie Bratt (b. Abt 1641) of Rensselaerwyck, New York, Abt 1670 and they had seven children that are known of:1)Arendt, b. WFT Est. 1664-1688; 2) Diewer, b. WFT Est. 1664-1688; 3) Cathlyntje, b. 1664-1689; 4) Annatje, b. Abt 1676; 5) Andries, b. 10 Sep 1684; 6) Geertruy (Gertrude), b. 17 Apr 1687; and 7) Claes, b. 6 Apr 1690.
Claes Sieverse and Annatje Van Petten (Van Patten) had four children before the death of Claes Sieverse in 1708:1) Jurrian (George) Severson (Sieverse), b. 8 Sep 1700; 2) Marrytje, b. 1 Feb 1702; 3) Eva, b. Abt 1703; and, 4) Nicholas, b. 26 Jul 1706.All children were born in Coxsackie, Green County, New York, but later moved to Albany, Altamont, Guilderland, Schenectady, and Conklin (Binghamton), Broome County, New York.
Upon Claes Sieverse's death in 1708, Annatje remarried to Cornelius L. Van Wormerdrink on 9 Feb 1709.They had one more known child:Frederick Cornelius, b. 20 Apr 1712.
This is probably more info than you want, but thought it would be interesting to you.Info was obtained through church records, ancestry.com family trees, LDS family history records.
Hope this helps to find the beginnings of the Van Pattens.