Today, 303 years ago, on February 5, 1722 (December 20, 1721), Russian Emperor Peter I announced the abolition of the system of first child inheritance to the throne. Peter I early married the Eudoxy and gave birth to the Prince Alexei. But Peter I did not like the prince, abandoned him and imprisoned him in the monastery. After the death of the Eudoxy, Peter I again married Martha (also known as Mary) as his second wife, and gave birth to two daughters: Anna Petrovna and Elizabeth Petrovna. On February 5, 1722, Peter I announced the abolition of the monastic system and did not designate a successor. On February 8, 1725, Peter I died in St. Petersburg. Since there was no prior decision on the successor, before this, the Emperor Ale