noblewoman married to a nobleman of senatorial rank. The Ochmistrzyni supervised a large number of unmarried ladies-in-waiting, maids of honour. The queen's court was a larger version of the courts of the Polish magnate noblewomen, and it was the custom in the Polish nobility to send their teenage daughters to be educated as ladies-in-waitings in the household of another noblewoman or preferably the queen herself in order to receive an education and find someone to marry. Russia In the Court of Muscovite Russia, the offices of ladies-in-waiting to the Tsarina were normally divided among the Boyarinas (widows or wives of Boyars), often from the family and relatives of the Tsarina. The first rank among the offices of the ladies-in-waiting was the Tsarina's treasurer. The second was the group of companions. The third were the royal nurses to the princes and princesses (where the nurses of the male children outranked); among the nurses, the most significant post was that of the Mamok, the head royal governess, who was normally selected from elder widows, often relatives to the Tsar or Tsarina. All offices were appointed by royal decree. The group of ladies-in-waiting were collectively above the rank of the Svetlichnaya (the Tsarina's sewing women), the Postelnitsy (the Tsarina's Chamber Women and Washing Women) and the officials who handled the affairs of the staff. In 1722, this system was abolished and the Russian imperial court was reorganized in accordance with the reforms of Peter the Great to westernize Russia, and the old court offices of the Tsarina were replaced with court offices inspired by the German model (see lady-in-waiting of the Imperial Court of Russia). Spain The royal court of Castile included a group of ladies-in-waiting for the queen named Camarera in the late 13th century and early 14th century, but it was not until the 15th century that a set organisation of the ladies-in-waiting is confirmed. This characteristic organisation of the Spanish ladies-in-waiting, roughly established during the reign of Isabella I of Castile (r. 1474–1504), was kept by Isabella of Portugal, Holy Roman Empress and Queen of Spain, during the 16th century, and became the standard Spanish court model for ladies-in-waiting. The highest rank female courtier was the Camarera Mayor de Palacio (Mistress of the Robes). This office is confirmed from the 1410s. The second rank was shared by the Ayas (royal governess), and the Guardas (chaperones). The third rank was the