From the Treasury of Daily Prayer:

St. Timothy had Christian believers in his family. His mother, Eunice, was a Christian woman and was the daughter of a Christian woman named Lois (2 Timothy 1:5). Acts records that St. Paul met Timothy on his second missionary journey and wanted Timothy to continue on with him (16:1-3). Over time, Timothy became a dear friend and close associate of Paul to whom Paul entrusted mission work in Greece and Asia Minor. Timothy was also with Paul in Rome. According to tradition, after Paul’s death, Timothy went to Ephesus, where he served as bishop and was martyred around AD 97. Timothy is best remembered as a faithful companion of Paul, one who rendered great service among the Gentile churches.