Baselios Cleemis was born on 1959-06-15.
Baselios Paulose I was born in 1836.
Baselios Geevarghese I was born in 1870.
Baselios Augen I was born in 1884.
As of Christmas 2013, Wikipedia lists the youngest Cardinal as Baselios Cardinal Cleemis from India, who was born on 15 June 1959. Cardinal Cleemis is the Major Archbishop of Trivandrum of the (Syro-Malankara Catholic Church. He was created a cardinal by Pope Benedict XVI on 24 November 2012. Thus he would be 54 years of age as of this posting.
Baselios Geevarghese II was born in 1874.
Baselios Thomas I was born on 1929-07-22.
Baselios Paulose II was born on 1914-06-12.
Cyril Mar Baselios was born on 1935-08-16.
Baselios Thoma Didymos I was born on 1920-10-29.
Baselios Mar Thoma Mathews I was born in 1907.
Catholicos Baselios Mar Thoma Didymos I was born on October 29, 1920.
Baselios Mar Thoma Paulose II was born on 1946-08-30.