Although a nationalist at home, Cantacuzino was soon involved in the international women's movement, often as a Romanian representative.
It was part of her power-sharing deal with Botez that she should deal with the external affairs of CNFR.
In 1923, she was the LDDF's delegate to the Congress International Alliance of Women (IAWSA, IAWSEC) Congress in Rome.
While abroad, she created a female version of the Little Entente, of which she was President until 1924.
Dubbed "Little Entente of Women" (Mica Antantă a Femeilor, MAF), or "Women of the Small Nations", it aligned Romanian feminist organizations with like-minded sororities from Czechoslovakia, Poland, Greece and the Kingdom of Yugoslavia.
She was generally hostile to the ethnic minorities, but also interested in finding common ground with feminists from the Transylvanian Saxon and Hungarian communities, inviting them to the women's congress of 1925.

From 1925 to 1936, with a CNFR mandate, Cantacuzino served as Vice President of the International Council of Women (ICW), and, as such became Romania's best-known feminist.
She was one of the European delegates to ICW's 1925 Conference in Washington, D. C.. By 1926, her distinctions included the Grand Cross of Queen Marie, the Order of the Holy Sepulchre (Collar), the Order of St. Sava (Great Officer), the Croix de guerre (Officer) and the Croce al Merito di Guerra (Officer).
She was IWC delegate at the League of Nations in 1927, and again in 1933, as well as IAWSEC rapporteur to the same international body (1926, 1928, 1933).
Drifting apart from both the LDDF and AECPFR, who accused her of using feminism to advance her own "internationalist" goals, Cantacuzino presided upon Solidaritatea ("Solidarity"), her very own feminist sorority, enlisting it with IAWSEC as a separate body.

Under the provisions of a law which allowed some women to run in local elections, Cantacuzino served on the Bucharest Financial Commission in 1927, and was a City Councilor after 1928, helping to establish the CNFR-run vocational school for female "social auxiliaries".
She was dividing her time between Bucharest and Zamora Castle, where, in August 1928, her eldest son Gheorghe Grigore married Zoe Greceanu.

Cantacuzino immersed herself in the struggle for electoral emancipation, lobbying for women's right to vote and run in elections for urban and rural citizens' councils.
To this goal, she created in 1929 an Association of Romanian Women (Gruparea Femeilor Române, GFR), of which she became President, while preserving control over CNFR and the smaller Solidaritatea.
One of the GFR's main goals, cemented in its charter, was "an active propaganda work, oral as well as written, among the feminine masses"; another one was the setting up of Initiative Committees for female representation.
However, the GFR remained highly centralized, and no clear criterion for admitting or rejecting membership was ever recorded in its statutes.
Political scientist Alexandra Petrescu finds that the GFR, a "matriarchal" order, mimicked the "masculine hierarchy" of traditional political parties, effectively subverting the democratizing process of first-wave feminism.

Cantacuzino participated in the grand rally of 150 women's societies, held at Fundațiile Regale, Bucharest, on April 28 of that year.
This resulted in a minor victory: a new law was passed in August 1929, allowing most professional women and all war widows to vote and participate in council elections.
Her notoriety was reflected in other areas.
She was the first-ever woman Officer of the Meritul Cultural Order.
In 1928, she was a Miss Romania judge, together with, among others, Nicolae Constantin Batzaria, Maria Giurgea and Liviu Rebreanu.
She also served as head of the Female Section during the June 1929 International Agricultural Congress.

Cantacuzino was co-opted among the official Romanian representatives to the League of Nations (uninterruptedly, from 1929 to 1938), primarily as adviser on women and child protection.
Meanwhile, together with art historian Alexandru Tzigara-Samurcaș, she set up a Union of
Although a nationalist at home, Cantacuzino was soon involved in the international women's movement, often as a Romanian representative. It was part of her power-sharing deal with Botez that she should deal with the external affairs of CNFR. In 1923, she was the LDDF's delegate to the Congress International Alliance of Women (IAWSA, IAWSEC) Congress in Rome. While abroad, she created a female version of the Little Entente, of which she was President until 1924. Dubbed "Little Entente of Women" (Mica Antantă a Femeilor, MAF), or "Women of the Small Nations", it aligned Romanian feminist organizations with like-minded sororities from Czechoslovakia, Poland, Greece and the Kingdom of Yugoslavia. She was generally hostile to the ethnic minorities, but also interested in finding common ground with feminists from the Transylvanian Saxon and Hungarian communities, inviting them to the women's congress of 1925.
From 1925 to 1936, with a CNFR mandate, Cantacuzino served as Vice President of the International Council of Women (ICW), and, as such became Romania's best-known feminist. She was one of the European delegates to ICW's 1925 Conference in Washington, D. C.. By 1926, her distinctions included the Grand Cross of Queen Marie, the Order of the Holy Sepulchre (Collar), the Order of St. Sava (Great Officer), the Croix de guerre (Officer) and the Croce al Merito di Guerra (Officer). She was IWC delegate at the League of Nations in 1927, and again in 1933, as well as IAWSEC rapporteur to the same international body (1926, 1928, 1933). Drifting apart from both the LDDF and AECPFR, who accused her of using feminism to advance her own "internationalist" goals, Cantacuzino presided upon Solidaritatea ("Solidarity"), her very own feminist sorority, enlisting it with IAWSEC as a separate body.
Under the provisions of a law which allowed some women to run in local elections, Cantacuzino served on the Bucharest Financial Commission in 1927, and was a City Councilor after 1928, helping to establish the CNFR-run vocational school for female "social auxiliaries". She was dividing her time between Bucharest and Zamora Castle, where, in August 1928, her eldest son Gheorghe Grigore married Zoe Greceanu.
Cantacuzino immersed herself in the struggle for electoral emancipation, lobbying for women's right to vote and run in elections for urban and rural citizens' councils. To this goal, she created in 1929 an Association of Romanian Women (Gruparea Femeilor Române, GFR), of which she became President, while preserving control over CNFR and the smaller Solidaritatea. One of the GFR's main goals, cemented in its charter, was "an active propaganda work, oral as well as written, among the feminine masses"; another one was the setting up of Initiative Committees for female representation. However, the GFR remained highly centralized, and no clear criterion for admitting or rejecting membership was ever recorded in its statutes. Political scientist Alexandra Petrescu finds that the GFR, a "matriarchal" order, mimicked the "masculine hierarchy" of traditional political parties, effectively subverting the democratizing process of first-wave feminism.
Cantacuzino participated in the grand rally of 150 women's societies, held at Fundațiile Regale, Bucharest, on April 28 of that year. This resulted in a minor victory: a new law was passed in August 1929, allowing most professional women and all war widows to vote and participate in council elections. Her notoriety was reflected in other areas. She was the first-ever woman Officer of the Meritul Cultural Order. In 1928, she was a Miss Romania judge, together with, among others, Nicolae Constantin Batzaria, Maria Giurgea and Liviu Rebreanu. She also served as head of the Female Section during the June 1929 International Agricultural Congress.
Cantacuzino was co-opted among the official Romanian representatives to the League of Nations (uninterruptedly, from 1929 to 1938), primarily as adviser on women and child protection. Meanwhile, together with art historian Alexandru Tzigara-Samurcaș, she set up a Union of
Alexandrina Cantacuzino