Crimson, if you are writing this yourself, please research a little bit about Orthodox Churches. There are no pews first of all. We stand. We don't normally kneel either - if we go on our knees it is to make a prostration. There wouldn't be pictures of dead soldiers in Church - only icons of Saints. Nor would he enter Church wearing a hat. Women have their heads veiled, but men are bare headed. he would not be able to go to the altar. The altar is behind the iconostasis, and the Royal Doors (in front of the altar) are closed except during the parts of the Service when they are to be opened. One can't just walk into the Altar area without a blessing from the Priest. The foundation of the Orthodox Church is Jerusalem, though Orthodoxy came to Russia via Byzantium (Constatinople). please don't take offence, but if you want to write a historical-fiction involving the Tsar and his family, you will need to read up about Orthodoxy.