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Hi! Is this a common houseleek? Is Sempervivum Royanum the common houseleek?

https://imgur.com/a/dtdP3e4

Yep, common houseleek. Sempervivum tectorum is the species name, "Royanum" is a variety of that species. The second one, without the colored edges on the leaves, is not Royanum, but it could be another variety of S. tectorum.