No. The Sistine Chapel is located in the Vatican, sometimes called Vatican City. The Vatican as we know it is what remains of a once quite large region called the Papal States over which the Pope was the absolute ruler.
The huge Catholic church in Vatican City is the St. Peters, see link below.
St. Peter's Basilica
What he painted was primarily portraits. And also the large frescoes in the Vatican.
St. Peter's Basilica is the name of a large church in the Vatican and not the name of a person.
The country with the largest Catholic percentage of the population is Vatican City, at 100%.
Vatican City; Italian: Città del Vaticano; Latin: Civitas Vaticana), officially the Vatican City State: Italian: Stato della Città del Vaticano: Latin: Status Civitatis Vaticanae.
There is no Vatican Island. However, the Vatican is an 'island' in the middle of the city of Rome.
Vatican City is not a church but a separate state and the seat of Government for the entire Catholic Church.St. Peter's Basilica is located on the grounds of the Vatican and is the world's largest Catholic Church structure. Notre Dame Cathedral in Paris, France, is another large church.
Vatican city's area is ~0.17 square miles (0.44 square kilometers).
Vatican Council I was the first Ecumenical Council to be held at the Vatican in Vatican City which is an independent country.
Vatican City is the capital of Vatican City the country.