Dobri Dobrev
Dobri Dimitrov Dobrev () (born 20 July 1914 – 13 February 2018), better known as Grandpa Dobri, Elder Dobri (), or The Saint of Bailovo was a Bulgarian philanthropist. He walks several kilometers each day to sit or stand in front of the Cathedral of Alexander Nevsky in Sofia to collect money for charitable causes. Dobrev  donates all the money he collects to charities, orphanages, churches and monasteries. He turned 100 in July 2014.