Complex sentence: This was part of the Galloway Gàidhealtachd, a strong Gaelic-speaking area of the Scottish Lowlands, and he was almost certain to have been a fluent speaker of the language.
Split into simpler sentences: This was part of the Galloway Gàidhealtachd, a strong Gaelic-speaking area of the Scottish Lowlands. He was almost certain to have been a native speaker of the language.