'Eleven year' in the Bible

Jehoiakim was twenty-five years old when he became king, and he reigned for eleven years in Jerusalem. His mother’s name was Zebidah daughter of Pedaiah of Rumah.

Zedekiah was twenty-one years old when he became king, and he reigned for eleven years in Jerusalem. His mother’s name was Hamutal daughter of Jeremiah of Libnah.