"Our Rensberger Ancestors" by Stanley Fruits says that Hans and Anna had 6 children.

Riemensperger (later Ramsburg) Families from Switzerland to Germany to America
from a letter of August 25, 1982 from Emil Thomas, Schwegenheim, Pfalz, West Germany

Hans Riemensperger b about 1615 m. Anna Emmali Keller.  They and their children lived originally in
buch, Switzerland.  Children are as follows:

(1) Hans    b Feb 2, 1640
(2) Felix    b Dec 6, 1641
(3) Jakob   b Feb 26, 1644 in Buch; m Jan 12, 1669 in Walldorf to Anna Bischoff
(4) Adam   b Jan 16, 1646 m. Oct 17, 1671 in Walldorf to Margareta Bischoff
(5) Verena b June 4, 1648, moved to Stuttgart in 1677
(6) Anna    b Feb 21, 1658