Moldavia’s Prince Alexander, called Alexander the Good (Alexander cel Bun), has expanded the bureaucracy system by creating the "Council of the Voivode", the Chancellory and by adding (in 1403) the institution of Logofăt—Chancellor of the official Chancellery.

During his reign, he has introduced new fiscal laws, by adding commercial privileges to the traders of Lviv (1408) and Kraków (1409), improved the situation of the trading routes (especially the one linking the port of Cetatea Albă to Poland), strengthened the forts guarding them, and expanded the Moldavian ports of Cetatea Albă and Chilia.

Alexander’s main concern is to defend the country in wars against superior armies.

To this end, he has forged a system of alliances with Wallachia and Poland, generally against Hungary (although he had been backed to the throne by Sigismund of Hungary).

In 1402, he had become a sworn vassal of Jogaila, the King of Poland.

The treaty is renewed in 1404 and 1407.