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At Stal de Hameren we breed with two proven bloodlines, which were both started by Anna-Sjouk’s grandfather. Both bloodlines have huge achievements in the sport and breeding. The bloodlines are the Freiminka-bloodline (mare line NL-038) and the Ritta-bloodline (mare line NL-015). With various breeding mares from both bloodlines, every year averagely six to ten foals are born. In the next text the Ritta-bloodline is elaborated on from the beginning before the Second World War till the sport horses that are currently present at our company. For a further description of the Freiminka-bloodline, click here.

Ritta-bloodline NL-mare line 015

Before the Second World War the basis of the Ritta-bloodline was founded by Jan Boelstra. The mare Erfdame (Edelman) and daughter Erfdame (Kwaliteit) were used for the hard labour on the farmland. The mares displayed a big readiness for the hard labour. This readiness is still present in the Ritta-horses that are present at Stal de Hameren.

Ritta (Tello) was one of three offspring of Erfdame and stand on the basis of NL-mare line 015. This mare line produced number of international show jumpers and approved stallions throughout the years. In combination with Sinaeda Ritta gave birth to the approved stallions Senner and Sportman.

Two sons, two daughters
The ster-preferent mare Ritta delivered a total of four children. Senner and Sportman and the mares Jonkvrouw (Sinaeda) and Sheila (Assad). Theses two mares are responsible for the further division and development of the Ritta-bloodline.

Model mare Jonkvrouw gave birth to the KWPN approved stallion Akteur (Amor). This stallion also was an international show jumper with his rider Hans Horn. Next to Akteur, Jonkvrouw delivered the mare Erfdame (Magneet), which gave birth to the mare Olympia in 1973. This Ritta-bloodline with Jonkvrouw at the basis delivered many talented horses. In the present there are still horses from this bloodline present at Stal de Hameren.

After Jonkvrouw Ritta delivered the mare Sheila. This descent of Assad is the mother of very talented horses of which many have had a valuable influence on the Dutch top sport and horse breeding. Daughter Geroma (Sinaeda) delivered via the mare Lydia (Uppercut), the KWPN approved stallion Triton (Erdball) and the NRPS approved stallion Nautilus (Nimmerdor). These stallions proved to be very valuable for the sport horse breeding. After Geroma, Sheila gave birth to Warzawianka (Ramiro), which delivered the NRPS approved stallion Lesley Z (Landlord).

The mares Geroma and Warzawianka were followed by the stallion Nieto (Rosenberg) and the mare Sandria (Amor). Sandria is at the basis of a Ritta-bloodline, which still has a few members present at Stal de Hameren. This bloodline is responsible for the KWPN approved stallions Zadok (Nimmerdor x Marco Polo) and the mare Olga Lowina (Jodokus x Topas)

Olga Lowina
A well known descent of the Ritta-bloodline is the mare Olga Lowina (Jodokus). This mare was ridden by Albert Zoer and is together with Okidoki one of the first three offspring of Jodokus and was exported to Japan.


The stallion Zadok (Nimmerdor) was on the cover of the stallion catalogue in 1990. In that time Zadok was the pest performing KWPN stallion of all time. He won several World Cups at the age of seven and in 1989 is came in on the 19th place in the World Cup Final. He managed to win two World Cups two weeks in a row.

In 1996 the plan was to present Zadok by hand at the KWPN stallion show, but the KWPN refused this. Of the offspring of Zadok there are prominent international show jumping results available. Zadel himself was approved by the AES (Angelo European Studbook) because of what he had achieved. This studbook is also active in the Netherlands and Zadok was one the most important ambassadors of this Studbook.


Akteur (Amor x Sinaeda) had a tremendous career as international show jumper till the age of 18. He still jumped 1.60 at that age. After this he was presented at the stallion show of 1983. Everybody knew that Akteur gave through top performance genes, but the stallion testing committee disapproved Akteur nevertheless. They said that Akteur didn’t fit in the evolving horse breeding. But thanks a to headstrong retesting committee Akteur was re-approved and preserved of the Dutch sport horse breeding and delivered many good and talented show jumpers and dressage horses. The retesting committee was immediately replaced after making the decision, by the KWPN board.