Are Alexander the Great and Alexander I the same person? If not, why do I feel the names are similar?

Do you have dyslexia? Don't you look at the pictures you sent? Alexander the Great (356-323 BC), Macedonian, Alexander I (1777- 1825), Russian, Alexander the Great is 2 133 years older than Alexander I, don't you think? And the nationalities are different. One is Greek and the other is Russian. Alexander is actually a common name for European men, which means that we call Jianguo, Zhang Jianguo and Wang Jianguo as one person. The full name of Macedonian King Alexander the Great is: Alexander III O Makedon, while the full name of Tsar Alexander I is aleksandar pavlovic romanov.