Complete the following sentence: The oldest known mention of Leśnica comes from a 1217 document of Duke Casimir I of Opole. Complete the following sentence: The oldest known mention of Leśnica comes from a 1217 document of Duke Casimir I of Opole. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ 1429 <unk>
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