Access proven breeding

Providing to every breeder and horse lover access to proven breeding. That is what drives us. It’s at the forefront of everything we do.

We offer pregnancies from mares that have performed at 5* level, whose offspring was placed at 5* level or that have been bred from the world's best dam lines. The talent of our mares and that of the world’s leading sires of sport horses are available for you.

Discover our mares

Pregnancies from proven damlines


The embryos can be sexed which gives the option of choosing a male or a female embryo.

Fixed prices

Our mares are divided into 4 categories: bronze, silver, gold and diamond, each representing a fixed price.

45-days pregnancy

Until the 45th day of pregnancy, there are no costs or risks: if the recipient mare does not appear to be pregnant on this day, the customer gets a full refund.


Daughter of Usha van ’t Roosakker, full sister of George Z and Babbe van ’t Roosakker

Sancha LS

Olympic performer, bred out of a World Cup winner

Dalida vd Heffinck

Mother of Scuderia 1918 Halifax van het Kluizebos and Cha Cha-H

Vibelle Z

Daughter of Ta Belle van Sombeke, full sister of Golden Hawk & sister of Glock's London

Imogen de Regor

Daughter of Centa de Muze, dam of Latisha & Mithras de Regor

Arera C

Winning more than € 900.000 in an international career lasting 8 seasons

Censcha (Finja)

Dam of six 1.60m horses including the Olympic H5 Quintol


She jumped 4 Championships with 3 different riders

Breeding starts with the wellbeing of our MoMs.

Mares are the cornerstone of breeding. We keep our mares surrounded by the best care, in the vast and sunny fields of Northern Italy on a self-managed property. The mediterranean climate allows year round grazing and the large individual stables with spacious paddocks give our equine athletes the comfort they deserve.

Is your mare a MoM?

The people & knowledge behind Mares of Macha

Pieter Devos

Pieter Devos

Pieter is an Olympic medallist, a 5* Grand Prix champion, a World Cup finalist and a European champion. Together with his team, he trains his Grand Prix horses himself. Being immersed in showjumping of the highest level, Pieter plays a crucial role in determining stallions for the MoMs and is the liaison between MoM owners who entrust us with their mares.

Klaas De Coster

Klaas De Coster

Before founding Mares of Macha, Klaas had already bred and produced his first 5* Grand Prix performer. He is the breeder of Kill Bill Max and produced the World Cup winning Valle d’Alezan van den Blauwaert of Abdullah Al Marri.

Martine Devos

Martine Devos

Martine is the breeder of numerous 5* Grand Prix horses. Her experience in breeding spans more than a decade and Martine had bred horses like Kriskras DV of Bart Bles en Carpe Diem DV Z of Pieter Devos. Her homebred horses are rarely sold before the age of 5 giving Martine all the insight of the development of a horse, from foal to Grand Prix winner.

Frequently asked questions

What is a frozen embryo?

An embryo is the result of the successful fertilisation of a female ovum or egg and a male sperm cell. A veterinarian collects an ovum from the mare using the OPU (Ovum Pick Up) technique. Then a sperm cell is injected into the ovum under very strict conditions in a laboratory, using specialised microscopic techniques. After approximately 7 days, the success of this fertilisation is determined and if successful, the embryo is frozen to a temperature of -⁠197°C with liquid nitrogen.

What is ICSI?

ICSI is the abbreviation for Intracytoplasmic Sperm Injection, meaning that a sperm is injected directly into an egg to achieve fertilisation.

Where are MoM embryos located?

MoM embryos are stored in two locations. The first is in Italy, where the mares and Avantea are located. The embryos are subsequently transported to the ‘De Morette’ Equine Reproduction Centre in Belgium. This reproduction centre complies with all European regulations and is certified for the storage of frozen embryos. From there, the embryos are shipped to one of the 16 certified implantation centres. We also have a limited stock in Brasil and the US.

How can I have my MoM embryo implanted?

We take care of the entire implantation procedure in one of the by MoM certified implantation centers across the world.