Emperor ivan antonovich. Ruler duke ernest biron. Ruler anna leopoldovna. 1740-1741. Appointed by anna ioannovna to be regent of the state until ivan antonovich came of age, biron was overthrown three weeks later. Anna leopoldovna, who took the place of the ruler, caused general discontent with her carelessness and had to yield the throne to the daughter of peter i, elizabeth petrovna. Date: 1896.
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