The one thing we know about them - They were Chasidim.

 

The one thing we know about them - They were Chasidim. We should have been celebrating tomorrow, (12th of Adar) but because of the Chasidim, we don't. The Gemoro (תענית י"ח ע"ב) says, "it is written in מגילת תענית not to fast or say הספדים on the  12th of Adar that day is called "יום טריינוס" Before Treinus killed two Tzadikim (לולינוס & פפוס) who were מוסר נפש for Klal Yisroel. They told him that HKBH. will take revenge and kill him if he kills them. Treinus  ignored them, and went ahead and killed them. Immediately afterward two Roman Diplomats cracked open the head of Treinus and killed him.  Therefore we celebrate this day as "יום טריינוס" . The Gemoro says that later on they were מבטל the יום טריינוס because of the two brothers, שמעיה & אחיה were killed on the 12th of Adar. Rashi says we have no details of what happened to them or who they were except that they were Chasidim. Hence, because of the two brothers The Chasidim we don't celebrate יום טריינוס and fasting & Hespeidim is permitted.