As far as is known, Patrick had no siblings.
St. Patrick was not married and had no children.
St. Patrick had been dead many years before the first St. Patrick's Day was celebrated so I doubt if he ate anything.
St Patrick started over 300 churches
Patrick Henry had seven sisters and two brothers.
If Patrick had any brothers we have no record of them.
Yes, many people in Ireland do drink on St. Patrick's Day, but not everyone.
St. Patrick's Cathedral
St. Patrick was not married.
St. Patrick was not married.
Patrick's greatest achievement was converting many or Ireland's pagans to Christianity.
Patrick was born about 1,600 years ago in Britain. As a boy Patrick was taken away and made a slave in Ireland. Patrick was a slave for many years and one day he made his escape. Upon returning to Britain Patrick promised to work for the church. Patrick was sent by the church back to Ireland where he spent his life converting the Irish people to be Catholic religion. Patrick converted thousands of Irish people and built many churches, and when he died the Catholic church made him a saint so that is why he was called saint Patrick and that is why we celebrate it. It is Ireland's national holiday and wherever Irish people can be found around the world, it is celebrated.
Yes, that's why it is called St. Patrick's Day.