Minecraft – Do strongholds spawn under abandoned villages

Villagers and villages were added in the 0.9.0 update. If you just want to create a new world with a village in it, you can use the seed 1409511342. You should spawn right next to a village. I believe every generated world will have at least one village in it. Sometimes they may be nearby, or they could be far, far away.

If, however, you want to get a village in a world you have already created, you should be able to find one after adventuring for a while UNLESS the world was created pre-0.9.0. In that case, you should be able to use MCEdit (a PC program) to copy a village from a PC world and place it in your PE world. It's pretty straightforward to use MCEdit, but if your world is 0.9.0+, you shouldn't need to use it.

According to the Minecraft wiki

Drowned will naturally spawn at light level of 7 or less in ocean biomes (all variants except warm ocean but including deep warm ocean‌[Java Edition only]), river (and frozen river), and swamp‌[Legacy Console Edition only] biomes

so by that logic, if you light up the small snippet of water so that every spot has a block Light Level of 8 or more no drowned should spawn