Complex sentence: The former had been completed as an ironclad warship in 1889, so was an obsolete coastal defence ship when acquired by the Navy of the Serbs, Croats and Slovenes in 1921, and was scrapped the following year.
Split into simpler sentences: The former had been completed as an ironclad warship in 1889. She was an obsolete coastal defence ship when acquired by the Navy of the Serbs, Croats and Slovenes in 1921, and was scrapped the following year.